sql_show.cc 133 KB
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/* Copyright (C) 2000-2004 MySQL AB
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   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */


/* Function with list databases, tables or fields */

#include "mysql_priv.h"
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#include "sql_select.h"                         // For select_describe
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#include "repl_failsafe.h"
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#include "sp.h"
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#include "sp_head.h"
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#include "sql_trigger.h"
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#include <my_dir.h>
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#ifdef HAVE_BERKELEY_DB
#include "ha_berkeley.h"			// For berkeley_show_logs
#endif

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static const char *grant_names[]={
  "select","insert","update","delete","create","drop","reload","shutdown",
  "process","file","grant","references","index","alter"};

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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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static TYPELIB grant_types = { sizeof(grant_names)/sizeof(char **),
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                               "grant_types",
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                               grant_names, NULL};
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#endif
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static int
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store_create_info(THD *thd, TABLE_LIST *table_list, String *packet);
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static int
view_store_create_info(THD *thd, TABLE_LIST *table, String *packet);
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static bool schema_table_store_record(THD *thd, TABLE *table);
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/***************************************************************************
** List all table types supported 
***************************************************************************/

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bool mysqld_show_storage_engines(THD *thd)
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{
  List<Item> field_list;
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  Protocol *protocol= thd->protocol;
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  DBUG_ENTER("mysqld_show_storage_engines");
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  field_list.push_back(new Item_empty_string("Engine",10));
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  field_list.push_back(new Item_empty_string("Support",10));
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  field_list.push_back(new Item_empty_string("Comment",80));
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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_RETURN(TRUE);
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  const char *default_type_name= 
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    ha_get_storage_engine((enum db_type)thd->variables.table_type);
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  show_table_type_st *types;
  for (types= sys_table_types; types->type; types++)
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  {
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    protocol->prepare_for_resend();
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    protocol->store(types->type, system_charset_info);
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    const char *option_name= show_comp_option_name[(int) *types->value];

    if (*types->value == SHOW_OPTION_YES &&
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	!my_strcasecmp(system_charset_info, default_type_name, types->type))
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      option_name= "DEFAULT";
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    protocol->store(option_name, system_charset_info);
    protocol->store(types->comment, system_charset_info);
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    if (protocol->write())
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      DBUG_RETURN(TRUE);
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  }
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  send_eof(thd);
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  DBUG_RETURN(FALSE);
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}

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/***************************************************************************
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 List all privileges supported
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***************************************************************************/

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struct show_privileges_st {
  const char *privilege;
  const char *context;
  const char *comment;
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};

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static struct show_privileges_st sys_privileges[]=
{
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  {"Alter", "Tables",  "To alter the table"},
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  {"Alter routine", "Functions,Procedures",  "To alter or drop stored functions/procedures"},
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  {"Create", "Databases,Tables,Indexes",  "To create new databases and tables"},
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  {"Create routine","Functions,Procedures","To use CREATE FUNCTION/PROCEDURE"},
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  {"Create temporary tables","Databases","To use CREATE TEMPORARY TABLE"},
  {"Create view", "Tables",  "To create new views"},
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  {"Create user", "Server Admin",  "To create new users"},
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  {"Delete", "Tables",  "To delete existing rows"},
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  {"Drop", "Databases,Tables", "To drop databases, tables, and views"},
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  {"Execute", "Functions,Procedures", "To execute stored routines"},
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  {"File", "File access on server",   "To read and write files on the server"},
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  {"Grant option",  "Databases,Tables,Functions,Procedures", "To give to other users those privileges you possess"},
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  {"Index", "Tables",  "To create or drop indexes"},
  {"Insert", "Tables",  "To insert data into tables"},
  {"Lock tables","Databases","To use LOCK TABLES (together with SELECT privilege)"},
  {"Process", "Server Admin", "To view the plain text of currently executing queries"},
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  {"References", "Databases,Tables", "To have references on tables"},
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  {"Reload", "Server Admin", "To reload or refresh tables, logs and privileges"},
  {"Replication client","Server Admin","To ask where the slave or master servers are"},
  {"Replication slave","Server Admin","To read binary log events from the master"},
  {"Select", "Tables",  "To retrieve rows from table"},
  {"Show databases","Server Admin","To see all databases with SHOW DATABASES"},
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  {"Show view","Tables","To see views with SHOW CREATE VIEW"},
  {"Shutdown","Server Admin", "To shut down the server"},
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  {"Super","Server Admin","To use KILL thread, SET GLOBAL, CHANGE MASTER, etc."},
  {"Update", "Tables",  "To update existing rows"},
  {"Usage","Server Admin","No privileges - allow connect only"},
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  {NullS, NullS, NullS}
};

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bool mysqld_show_privileges(THD *thd)
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{
  List<Item> field_list;
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  Protocol *protocol= thd->protocol;
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  DBUG_ENTER("mysqld_show_privileges");

  field_list.push_back(new Item_empty_string("Privilege",10));
  field_list.push_back(new Item_empty_string("Context",15));
  field_list.push_back(new Item_empty_string("Comment",NAME_LEN));

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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_RETURN(TRUE);
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  show_privileges_st *privilege= sys_privileges;
  for (privilege= sys_privileges; privilege->privilege ; privilege++)
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  {
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    protocol->prepare_for_resend();
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    protocol->store(privilege->privilege, system_charset_info);
    protocol->store(privilege->context, system_charset_info);
    protocol->store(privilege->comment, system_charset_info);
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    if (protocol->write())
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      DBUG_RETURN(TRUE);
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  }
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  send_eof(thd);
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  DBUG_RETURN(FALSE);
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}


/***************************************************************************
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  List all column types
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***************************************************************************/

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struct show_column_type_st
{
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  const char *type;
  uint size;
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  const char *min_value;
  const char *max_value;
  uint precision;
  uint scale;
  const char *nullable;
  const char *auto_increment;
  const char *unsigned_attr;
  const char *zerofill;
  const char *searchable;
  const char *case_sensitivity;
  const char *default_value;
  const char *comment;
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};
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/* TODO: Add remaning types */

static struct show_column_type_st sys_column_types[]=
{
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  {"tinyint",
    1,  "-128",  "127",  0,  0,  "YES",  "YES",
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    "NO",   "YES", "YES",  "NO",  "NULL,0",
    "A very small integer"},
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  {"tinyint unsigned",
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    1,  "0"   ,  "255",  0,  0,  "YES",  "YES",
    "YES",  "YES",  "YES",  "NO",  "NULL,0",
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    "A very small integer"},
};

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bool mysqld_show_column_types(THD *thd)
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{
  List<Item> field_list;
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  Protocol *protocol= thd->protocol;
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  DBUG_ENTER("mysqld_show_column_types");

  field_list.push_back(new Item_empty_string("Type",30));
  field_list.push_back(new Item_int("Size",(longlong) 1,21));
  field_list.push_back(new Item_empty_string("Min_Value",20));
  field_list.push_back(new Item_empty_string("Max_Value",20));
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  field_list.push_back(new Item_return_int("Prec", 4, MYSQL_TYPE_SHORT));
  field_list.push_back(new Item_return_int("Scale", 4, MYSQL_TYPE_SHORT));
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  field_list.push_back(new Item_empty_string("Nullable",4));
  field_list.push_back(new Item_empty_string("Auto_Increment",4));
  field_list.push_back(new Item_empty_string("Unsigned",4));
  field_list.push_back(new Item_empty_string("Zerofill",4));
  field_list.push_back(new Item_empty_string("Searchable",4));
  field_list.push_back(new Item_empty_string("Case_Sensitive",4));
  field_list.push_back(new Item_empty_string("Default",NAME_LEN));
  field_list.push_back(new Item_empty_string("Comment",NAME_LEN));

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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_RETURN(TRUE);
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  /* TODO: Change the loop to not use 'i' */
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  for (uint i=0; i < sizeof(sys_column_types)/sizeof(sys_column_types[0]); i++)
  {
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    protocol->prepare_for_resend();
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    protocol->store(sys_column_types[i].type, system_charset_info);
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    protocol->store((ulonglong) sys_column_types[i].size);
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    protocol->store(sys_column_types[i].min_value, system_charset_info);
    protocol->store(sys_column_types[i].max_value, system_charset_info);
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    protocol->store_short((longlong) sys_column_types[i].precision);
    protocol->store_short((longlong) sys_column_types[i].scale);
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    protocol->store(sys_column_types[i].nullable, system_charset_info);
    protocol->store(sys_column_types[i].auto_increment, system_charset_info);
    protocol->store(sys_column_types[i].unsigned_attr, system_charset_info);
    protocol->store(sys_column_types[i].zerofill, system_charset_info);
    protocol->store(sys_column_types[i].searchable, system_charset_info);
    protocol->store(sys_column_types[i].case_sensitivity, system_charset_info);
    protocol->store(sys_column_types[i].default_value, system_charset_info);
    protocol->store(sys_column_types[i].comment, system_charset_info);
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    if (protocol->write())
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      DBUG_RETURN(TRUE);
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  }
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  send_eof(thd);
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  DBUG_RETURN(FALSE);
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}


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int
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mysql_find_files(THD *thd,List<char> *files, const char *db,const char *path,
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                 const char *wild, bool dir)
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{
  uint i;
  char *ext;
  MY_DIR *dirp;
  FILEINFO *file;
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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  uint col_access=thd->col_access;
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#endif
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  TABLE_LIST table_list;
  DBUG_ENTER("mysql_find_files");

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  if (wild && !wild[0])
    wild=0;
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  bzero((char*) &table_list,sizeof(table_list));

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  if (!(dirp = my_dir(path,MYF(dir ? MY_WANT_STAT : 0))))
  {
    if (my_errno == ENOENT)
      my_error(ER_BAD_DB_ERROR, MYF(ME_BELL+ME_WAITTANG), db);
    else
      my_error(ER_CANT_READ_DIR, MYF(ME_BELL+ME_WAITTANG), path, my_errno);
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    DBUG_RETURN(-1);
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  }
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  for (i=0 ; i < (uint) dirp->number_off_files  ; i++)
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  {
    file=dirp->dir_entry+i;
    if (dir)
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    {                                           /* Return databases */
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#ifdef USE_SYMDIR
      char *ext;
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      char buff[FN_REFLEN];
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      if (my_use_symdir && !strcmp(ext=fn_ext(file->name), ".sym"))
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      {
	/* Only show the sym file if it points to a directory */
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	char *end;
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        *ext=0;                                 /* Remove extension */
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	unpack_dirname(buff, file->name);
	end= strend(buff);
	if (end != buff && end[-1] == FN_LIBCHAR)
	  end[-1]= 0;				// Remove end FN_LIBCHAR
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        if (!my_stat(buff, file->mystat, MYF(0)))
               continue;
       }
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#endif
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        if (file->name[0] == '.' || !MY_S_ISDIR(file->mystat->st_mode) ||
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            (wild && wild_compare(file->name,wild,0)))
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          continue;
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    }
    else
    {
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        // Return only .frm files which aren't temp files.
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      if (my_strcasecmp(system_charset_info, ext=fn_ext(file->name),reg_ext) ||
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          is_prefix(file->name,tmp_file_prefix))
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        continue;
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      *ext=0;
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      if (wild)
      {
	if (lower_case_table_names)
	{
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	  if (wild_case_compare(files_charset_info, file->name, wild))
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	    continue;
	}
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	else if (wild_compare(file->name,wild,0))
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	  continue;
      }
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    }
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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    /* Don't show tables where we don't have any privileges */
    if (db && !(col_access & TABLE_ACLS))
    {
      table_list.db= (char*) db;
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      table_list.db_length= strlen(db);
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      table_list.table_name= file->name;
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      table_list.table_name_length= strlen(file->name);
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      table_list.grant.privilege=col_access;
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      if (check_grant(thd, TABLE_ACLS, &table_list, 1, UINT_MAX, 1))
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        continue;
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    }
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#endif
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    if (files->push_back(thd->strdup(file->name)))
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    {
      my_dirend(dirp);
      DBUG_RETURN(-1);
    }
  }
  DBUG_PRINT("info",("found: %d files", files->elements));
  my_dirend(dirp);
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  VOID(ha_find_files(thd,db,path,wild,dir,files));

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  DBUG_RETURN(0);
}

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bool
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mysqld_show_create(THD *thd, TABLE_LIST *table_list)
{
  TABLE *table;
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  Protocol *protocol= thd->protocol;
  char buff[2048];
  String buffer(buff, sizeof(buff), system_charset_info);
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  DBUG_ENTER("mysqld_show_create");
  DBUG_PRINT("enter",("db: %s  table: %s",table_list->db,
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                      table_list->table_name));
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  /* We want to preserve the tree for views. */
  thd->lex->view_prepare_mode= TRUE;

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  /* Only one table for now, but VIEW can involve several tables */
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  if (open_normal_and_derived_tables(thd, table_list, 0))
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  {
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    DBUG_RETURN(TRUE);
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  }
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  /* TODO: add environment variables show when it become possible */
  if (thd->lex->only_view && !table_list->view)
  {
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    my_error(ER_WRONG_OBJECT, MYF(0),
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             table_list->db, table_list->table_name, "VIEW");
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    DBUG_RETURN(TRUE);
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  }
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  table= table_list->table;
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  if ((table_list->view ?
       view_store_create_info(thd, table_list, &buffer) :
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       store_create_info(thd, table_list, &buffer)))
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    DBUG_RETURN(TRUE);
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  List<Item> field_list;
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  if (table_list->view)
  {
    field_list.push_back(new Item_empty_string("View",NAME_LEN));
    field_list.push_back(new Item_empty_string("Create View",
                                               max(buffer.length(),1024)));
  }
  else
  {
    field_list.push_back(new Item_empty_string("Table",NAME_LEN));
    // 1024 is for not to confuse old clients
    field_list.push_back(new Item_empty_string("Create Table",
                                               max(buffer.length(),1024)));
  }
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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_RETURN(TRUE);
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  protocol->prepare_for_resend();
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  buffer.length(0);
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  if (table_list->view)
  {
    protocol->store(table_list->view_name.str, system_charset_info);
    if (view_store_create_info(thd, table_list, &buffer))
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      DBUG_RETURN(TRUE);
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  }
  else
  {
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    if (table_list->schema_table)
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      protocol->store(table_list->schema_table->table_name,
                      system_charset_info);
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    else
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      protocol->store(table->alias, system_charset_info);
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    if (store_create_info(thd, table_list, &buffer))
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      DBUG_RETURN(TRUE);
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VIEW  
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  }
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  protocol->store(buffer.ptr(), buffer.length(), buffer.charset());
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  if (protocol->write())
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    DBUG_RETURN(TRUE);
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  send_eof(thd);
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  DBUG_RETURN(FALSE);
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}

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bool mysqld_show_create_db(THD *thd, char *dbname,
                           HA_CREATE_INFO *create_info)
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{
  int length;
  char	path[FN_REFLEN];
  char buff[2048];
  String buffer(buff, sizeof(buff), system_charset_info);
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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  uint db_access;
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#endif
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  bool found_libchar;
  HA_CREATE_INFO create;
  uint create_options = create_info ? create_info->options : 0;
  Protocol *protocol=thd->protocol;
  DBUG_ENTER("mysql_show_create_db");

  if (check_db_name(dbname))
  {
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    my_error(ER_WRONG_DB_NAME, MYF(0), dbname);
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    DBUG_RETURN(TRUE);
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  }

#ifndef NO_EMBEDDED_ACCESS_CHECKS
  if (test_all_bits(thd->master_access,DB_ACLS))
    db_access=DB_ACLS;
  else
    db_access= (acl_get(thd->host,thd->ip, thd->priv_user,dbname,0) |
		thd->master_access);
  if (!(db_access & DB_ACLS) && (!grant_option || check_grant_db(thd,dbname)))
  {
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    my_error(ER_DBACCESS_DENIED_ERROR, MYF(0),
             thd->priv_user, thd->host_or_ip, dbname);
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    mysql_log.write(thd,COM_INIT_DB,ER(ER_DBACCESS_DENIED_ERROR),
		    thd->priv_user, thd->host_or_ip, dbname);
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    DBUG_RETURN(TRUE);
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  }
#endif
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  if (!my_strcasecmp(system_charset_info, dbname,
                     information_schema_name.str))
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  {
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    dbname= information_schema_name.str;
    create.default_table_charset= system_charset_info;
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  }
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  else
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  {
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    (void) sprintf(path,"%s/%s",mysql_data_home, dbname);
    length=unpack_dirname(path,path);		// Convert if not unix
    found_libchar= 0;
    if (length && path[length-1] == FN_LIBCHAR)
    {
      found_libchar= 1;
      path[length-1]=0;				// remove ending '\'
    }
    if (access(path,F_OK))
    {
      my_error(ER_BAD_DB_ERROR, MYF(0), dbname);
      DBUG_RETURN(TRUE);
    }
    if (found_libchar)
      path[length-1]= FN_LIBCHAR;
    strmov(path+length, MY_DB_OPT_FILE);
    load_db_opt(thd, path, &create);
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  }
  List<Item> field_list;
  field_list.push_back(new Item_empty_string("Database",NAME_LEN));
  field_list.push_back(new Item_empty_string("Create Database",1024));

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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_RETURN(TRUE);
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  protocol->prepare_for_resend();
  protocol->store(dbname, strlen(dbname), system_charset_info);
  buffer.length(0);
  buffer.append("CREATE DATABASE ", 16);
  if (create_options & HA_LEX_CREATE_IF_NOT_EXISTS)
    buffer.append("/*!32312 IF NOT EXISTS*/ ", 25);
  append_identifier(thd, &buffer, dbname, strlen(dbname));

  if (create.default_table_charset)
  {
    buffer.append(" /*!40100", 9);
    buffer.append(" DEFAULT CHARACTER SET ", 23);
    buffer.append(create.default_table_charset->csname);
    if (!(create.default_table_charset->state & MY_CS_PRIMARY))
    {
      buffer.append(" COLLATE ", 9);
      buffer.append(create.default_table_charset->name);
    }
    buffer.append(" */", 3);
  }
  protocol->store(buffer.ptr(), buffer.length(), buffer.charset());

  if (protocol->write())
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    DBUG_RETURN(TRUE);
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  send_eof(thd);
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  DBUG_RETURN(FALSE);
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}
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bool
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mysqld_show_logs(THD *thd)
{
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  List<Item> field_list;
  Protocol *protocol= thd->protocol;
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  DBUG_ENTER("mysqld_show_logs");

  field_list.push_back(new Item_empty_string("File",FN_REFLEN));
  field_list.push_back(new Item_empty_string("Type",10));
  field_list.push_back(new Item_empty_string("Status",10));

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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_RETURN(TRUE);
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539
#ifdef HAVE_BERKELEY_DB
540
  if ((have_berkeley_db == SHOW_OPTION_YES) && berkeley_show_logs(protocol))
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    DBUG_RETURN(TRUE);
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#endif
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  send_eof(thd);
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  DBUG_RETURN(FALSE);
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}


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/****************************************************************************
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  Return only fields for API mysql_list_fields
  Use "show table wildcard" in mysql instead of this
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****************************************************************************/

void
mysqld_list_fields(THD *thd, TABLE_LIST *table_list, const char *wild)
{
  TABLE *table;
  DBUG_ENTER("mysqld_list_fields");
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  DBUG_PRINT("enter",("table: %s",table_list->table_name));
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  if (open_normal_and_derived_tables(thd, table_list, 0))
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    DBUG_VOID_RETURN;
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  table= table_list->table;

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  List<Item> field_list;

  Field **ptr,*field;
  for (ptr=table->field ; (field= *ptr); ptr++)
  {
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    if (!wild || !wild[0] || 
        !wild_case_compare(system_charset_info, field->field_name,wild))
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      field_list.push_back(new Item_field(field));
  }
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  restore_record(table, s->default_values);              // Get empty record
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  if (thd->protocol->send_fields(&field_list, Protocol::SEND_DEFAULTS |
                                              Protocol::SEND_EOF))
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    DBUG_VOID_RETURN;
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  thd->protocol->flush();
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  DBUG_VOID_RETURN;
}

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int
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mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd)
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{
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  Protocol *protocol= thd->protocol;
  String *packet= protocol->storage_packet();
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  DBUG_ENTER("mysqld_dump_create_info");
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  DBUG_PRINT("enter",("table: %s",table_list->table->s->table_name));
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  protocol->prepare_for_resend();
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  if (store_create_info(thd, table_list, packet))
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    DBUG_RETURN(-1);
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  if (fd < 0)
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  {
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    if (protocol->write())
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      DBUG_RETURN(-1);
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    protocol->flush();
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  }
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  else
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  {
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    if (my_write(fd, (const byte*) packet->ptr(), packet->length(),
		 MYF(MY_WME)))
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      DBUG_RETURN(-1);
  }
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  DBUG_RETURN(0);
}
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/*
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  Go through all character combinations and ensure that sql_lex.cc can
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  parse it as an identifier.
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  SYNOPSIS
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  require_quotes()
  name			attribute name
  name_length		length of name

  RETURN
    #	Pointer to conflicting character
    0	No conflicting character
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*/

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static const char *require_quotes(const char *name, uint name_length)
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{
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  uint length;
  const char *end= name + name_length;

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  for (; name < end ; name++)
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  {
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    uchar chr= (uchar) *name;
    length= my_mbcharlen(system_charset_info, chr);
    if (length == 1 && !system_charset_info->ident_map[chr])
      return name;
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  }
  return 0;
}
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void
append_identifier(THD *thd, String *packet, const char *name, uint length)
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{
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  const char *name_end;
  char quote_char;
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  int q= get_quote_char_for_identifier(thd, name, length);
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  if (q == EOF)
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  {
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    packet->append(name, length, system_charset_info);
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    return;
  }

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  /*
    The identifier must be quoted as it includes a quote character or
   it's a keyword
  */
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  packet->reserve(length*2 + 2);
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  quote_char= (char) q;
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  packet->append(&quote_char, 1, system_charset_info);

  for (name_end= name+length ; name < name_end ; name+= length)
  {
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    uchar chr= (uchar) *name;
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    length= my_mbcharlen(system_charset_info, chr);
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    /*
      my_mbcharlen can retur 0 on a wrong multibyte
      sequence. It is possible when upgrading from 4.0,
      and identifier contains some accented characters.
      The manual says it does not work. So we'll just
      change length to 1 not to hang in the endless loop.
    */
    if (!length)
      length= 1;
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    if (length == 1 && chr == (uchar) quote_char)
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      packet->append(&quote_char, 1, system_charset_info);
    packet->append(name, length, packet->charset());
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  }
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  packet->append(&quote_char, 1, system_charset_info);
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}

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/*
  Get the quote character for displaying an identifier.

  SYNOPSIS
    get_quote_char_for_identifier()
    thd		Thread handler
    name	name to quote
    length	length of name

  IMPLEMENTATION
    If name is a keyword or includes a special character, then force
    quoting.
    Otherwise identifier is quoted only if the option OPTION_QUOTE_SHOW_CREATE
    is set.

  RETURN
    EOF	  No quote character is needed
    #	  Quote character
*/
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int get_quote_char_for_identifier(THD *thd, const char *name, uint length)
{
  if (!is_keyword(name,length) &&
      !require_quotes(name, length) &&
      !(thd->options & OPTION_QUOTE_SHOW_CREATE))
    return EOF;
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  if (thd->variables.sql_mode & MODE_ANSI_QUOTES)
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    return '"';
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  return '`';
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}


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/* Append directory name (if exists) to CREATE INFO */

static void append_directory(THD *thd, String *packet, const char *dir_type,
			     const char *filename)
{
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  if (filename && !(thd->variables.sql_mode & MODE_NO_DIR_IN_CREATE))
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  {
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    uint length= dirname_length(filename);
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    packet->append(' ');
    packet->append(dir_type);
    packet->append(" DIRECTORY='", 12);
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#ifdef __WIN__
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    /* Convert \ to / to be able to create table on unix */
    char *winfilename= (char*) thd->memdup(filename, length);
    char *pos, *end;
    for (pos= winfilename, end= pos+length ; pos < end ; pos++)
    {
      if (*pos == '\\')
        *pos = '/';
    }
    filename= winfilename;
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#endif
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    packet->append(filename, length);
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    packet->append('\'');
  }
}


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#define LIST_PROCESS_HOST_LEN 64
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static int
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store_create_info(THD *thd, TABLE_LIST *table_list, String *packet)
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{
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  List<Item> field_list;
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  char tmp[MAX_FIELD_WIDTH], *for_str, buff[128], *end;
  const char *alias;
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  String type(tmp, sizeof(tmp), system_charset_info);
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  Field **ptr,*field;
  uint primary_key;
  KEY *key_info;
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  TABLE *table= table_list->table;
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  handler *file= table->file;
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  TABLE_SHARE *share= table->s;
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  HA_CREATE_INFO create_info;
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  my_bool foreign_db_mode=    (thd->variables.sql_mode & (MODE_POSTGRESQL |
							  MODE_ORACLE |
							  MODE_MSSQL |
							  MODE_DB2 |
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							  MODE_MAXDB |
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							  MODE_ANSI)) != 0;
  my_bool limited_mysql_mode= (thd->variables.sql_mode &
			       (MODE_NO_FIELD_OPTIONS | MODE_MYSQL323 |
				MODE_MYSQL40)) != 0;
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  DBUG_ENTER("store_create_info");
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  DBUG_PRINT("enter",("table: %s", table->s->table_name));
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  restore_record(table, s->default_values); // Get empty record
772

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  if (share->tmp_table)
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    packet->append("CREATE TEMPORARY TABLE ", 23);
  else
    packet->append("CREATE TABLE ", 13);
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  if (table_list->schema_table)
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    alias= table_list->schema_table->table_name;
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  else
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    alias= (lower_case_table_names == 2 ? table->alias :
            share->table_name);
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  append_identifier(thd, packet, alias, strlen(alias));
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  packet->append(" (\n", 3);
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  for (ptr=table->field ; (field= *ptr); ptr++)
  {
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    bool has_default;
788
    bool has_now_default;
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    uint flags = field->flags;

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    if (ptr != table->field)
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      packet->append(",\n", 2);
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    packet->append("  ", 2);
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    append_identifier(thd,packet,field->field_name, strlen(field->field_name));
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    packet->append(' ');
    // check for surprises from the previous call to Field::sql_type()
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    if (type.ptr() != tmp)
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      type.set(tmp, sizeof(tmp), system_charset_info);
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    else
      type.set_charset(system_charset_info);
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    field->sql_type(type);
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    packet->append(type.ptr(), type.length(), system_charset_info);
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    if (field->has_charset() && !limited_mysql_mode && !foreign_db_mode)
807
    {
808
      if (field->charset() != share->table_charset)
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      {
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	packet->append(" character set ", 15);
	packet->append(field->charset()->csname);
      }
      /* 
	For string types dump collation name only if 
	collation is not primary for the given charset
      */
      if (!(field->charset()->state & MY_CS_PRIMARY))
      {
	packet->append(" collate ", 9);
	packet->append(field->charset()->name);
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      }
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    }
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    if (flags & NOT_NULL_FLAG)
      packet->append(" NOT NULL", 9);
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    else if (field->type() == FIELD_TYPE_TIMESTAMP)
    {
      /*
        TIMESTAMP field require explicit NULL flag, because unlike
        all other fields they are treated as NOT NULL by default.
      */
      packet->append(" NULL", 5);
    }
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    /* 
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      Again we are using CURRENT_TIMESTAMP instead of NOW because it is
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      more standard 
    */
    has_now_default= table->timestamp_field == field && 
                     field->unireg_check != Field::TIMESTAMP_UN_FIELD;
    
842
    has_default= (field->type() != FIELD_TYPE_BLOB &&
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                  !(field->flags & NO_DEFAULT_VALUE_FLAG) &&
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		  field->unireg_check != Field::NEXT_NUMBER &&
                  !((foreign_db_mode || limited_mysql_mode) &&
                    has_now_default));
847

848
    if (has_default)
849 850
    {
      packet->append(" default ", 9);
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      if (has_now_default)
        packet->append("CURRENT_TIMESTAMP",17);
      else if (!field->is_null())
854
      {                                             // Not null by default
855
        type.set(tmp, sizeof(tmp), field->charset());
856
        field->val_str(&type);
857
	if (type.length())
858
	{
859
	  String def_val;
860
          uint dummy_errors;
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	  /* convert to system_charset_info == utf8 */
	  def_val.copy(type.ptr(), type.length(), field->charset(),
863
		       system_charset_info, &dummy_errors);
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          append_unescaped(packet, def_val.ptr(), def_val.length());
	}
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        else
	  packet->append("''",2);
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      }
869
      else if (field->maybe_null())
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        packet->append("NULL", 4);                    // Null as default
      else
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        packet->append(tmp);
873
    }
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    if (!foreign_db_mode && !limited_mysql_mode &&
        table->timestamp_field == field && 
        field->unireg_check != Field::TIMESTAMP_DN_FIELD)
      packet->append(" on update CURRENT_TIMESTAMP",28);

880
    if (field->unireg_check == Field::NEXT_NUMBER && !foreign_db_mode)
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      packet->append(" auto_increment", 15 );

    if (field->comment.length)
    {
      packet->append(" COMMENT ",9);
      append_unescaped(packet, field->comment.str, field->comment.length);
    }
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  }

890 891
  key_info= table->key_info;
  file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK | HA_STATUS_TIME);
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  bzero((char*) &create_info, sizeof(create_info));
893
  file->update_create_info(&create_info);
894
  primary_key= share->primary_key;
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896
  for (uint i=0 ; i < share->keys ; i++,key_info++)
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  {
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    KEY_PART_INFO *key_part= key_info->key_part;
    bool found_primary=0;
900
    packet->append(",\n  ", 4);
901

902
    if (i == primary_key && !strcmp(key_info->name, primary_key_name))
903 904
    {
      found_primary=1;
905
      packet->append("PRIMARY ", 8);
906
    }
907
    else if (key_info->flags & HA_NOSAME)
908
      packet->append("UNIQUE ", 7);
909
    else if (key_info->flags & HA_FULLTEXT)
910
      packet->append("FULLTEXT ", 9);
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    else if (key_info->flags & HA_SPATIAL)
      packet->append("SPATIAL ", 8);
913
    packet->append("KEY ", 4);
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915
    if (!found_primary)
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     append_identifier(thd, packet, key_info->name, strlen(key_info->name));
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    if (!(thd->variables.sql_mode & MODE_NO_KEY_OPTIONS) &&
	!limited_mysql_mode && !foreign_db_mode)
    {
921
      if (key_info->algorithm == HA_KEY_ALG_BTREE)
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        packet->append(" USING BTREE", 12);

924
      if (key_info->algorithm == HA_KEY_ALG_HASH)
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        packet->append(" USING HASH", 11);

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      // +BAR: send USING only in non-default case: non-spatial rtree
      if ((key_info->algorithm == HA_KEY_ALG_RTREE) &&
	  !(key_info->flags & HA_SPATIAL))
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        packet->append(" USING RTREE", 12);
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      // No need to send USING FULLTEXT, it is sent as FULLTEXT KEY
933
    }
934
    packet->append(" (", 2);
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    for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
    {
938
      if (j)
939
        packet->append(',');
940

941
      if (key_part->field)
942 943
        append_identifier(thd,packet,key_part->field->field_name,
			  strlen(key_part->field->field_name));
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      if (!key_part->field ||
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          (key_part->length !=
           table->field[key_part->fieldnr-1]->key_length() &&
           !(key_info->flags & HA_FULLTEXT)))
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      {
949
        buff[0] = '(';
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        char* end=int10_to_str((long) key_part->length / 
			       key_part->field->charset()->mbmaxlen,
			       buff + 1,10);
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        *end++ = ')';
        packet->append(buff,(uint) (end-buff));
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      }
    }
    packet->append(')');
  }
959

960 961 962 963
  /*
    Get possible foreign key definitions stored in InnoDB and append them
    to the CREATE TABLE statement
  */
964

965
  if ((for_str= file->get_foreign_key_create_info()))
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  {
    packet->append(for_str, strlen(for_str));
    file->free_foreign_key_create_info(for_str);
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  }

  packet->append("\n)", 2);
972
  if (!(thd->variables.sql_mode & MODE_NO_TABLE_OPTIONS) && !foreign_db_mode)
973
  {
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    if (thd->variables.sql_mode & (MODE_MYSQL323 | MODE_MYSQL40))
      packet->append(" TYPE=", 6);
    else
      packet->append(" ENGINE=", 8);
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    packet->append(file->table_type());
    
980
    if (share->table_charset &&
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	!(thd->variables.sql_mode & MODE_MYSQL323) &&
	!(thd->variables.sql_mode & MODE_MYSQL40))
983
    {
984
      packet->append(" DEFAULT CHARSET=", 17);
985 986
      packet->append(share->table_charset->csname);
      if (!(share->table_charset->state & MY_CS_PRIMARY))
987
      {
988
	packet->append(" COLLATE=", 9);
989
	packet->append(table->s->table_charset->name);
990
      }
991
    }
992

993
    if (share->min_rows)
994
    {
995
      packet->append(" MIN_ROWS=", 10);
996
      end= longlong10_to_str(share->min_rows, buff, 10);
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      packet->append(buff, (uint) (end- buff));
998
    }
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1000
    if (share->max_rows && !table_list->schema_table)
1001
    {
1002
      packet->append(" MAX_ROWS=", 10);
1003
      end= longlong10_to_str(share->max_rows, buff, 10);
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      packet->append(buff, (uint) (end - buff));
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    }
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1007
    if (share->avg_row_length)
1008
    {
1009
      packet->append(" AVG_ROW_LENGTH=", 16);
1010
      end= longlong10_to_str(share->avg_row_length, buff,10);
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      packet->append(buff, (uint) (end - buff));
1012
    }
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1014
    if (share->db_create_options & HA_OPTION_PACK_KEYS)
1015
      packet->append(" PACK_KEYS=1", 12);
1016
    if (share->db_create_options & HA_OPTION_NO_PACK_KEYS)
1017
      packet->append(" PACK_KEYS=0", 12);
1018
    if (share->db_create_options & HA_OPTION_CHECKSUM)
1019
      packet->append(" CHECKSUM=1", 11);
1020
    if (share->db_create_options & HA_OPTION_DELAY_KEY_WRITE)
1021
      packet->append(" DELAY_KEY_WRITE=1",18);
1022
    if (share->row_type != ROW_TYPE_DEFAULT)
1023 1024
    {
      packet->append(" ROW_FORMAT=",12);
1025
      packet->append(ha_row_type[(uint) share->row_type]);
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    }
    table->file->append_create_info(packet);
1028
    if (share->comment && share->comment[0])
1029 1030
    {
      packet->append(" COMMENT=", 9);
1031
      append_unescaped(packet, share->comment, strlen(share->comment));
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    }
    if (file->raid_type)
    {
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      uint length;
      length= my_snprintf(buff,sizeof(buff),
			  " RAID_TYPE=%s RAID_CHUNKS=%d RAID_CHUNKSIZE=%ld",
			  my_raid_type(file->raid_type), file->raid_chunks,
			  file->raid_chunksize/RAID_BLOCK_SIZE);
      packet->append(buff, length);
1041
    }
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    append_directory(thd, packet, "DATA",  create_info.data_file_name);
    append_directory(thd, packet, "INDEX", create_info.index_file_name);
1044
  }
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  DBUG_RETURN(0);
}


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VIEW  
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static int
view_store_create_info(THD *thd, TABLE_LIST *table, String *buff)
{
  my_bool foreign_db_mode= (thd->variables.sql_mode & (MODE_POSTGRESQL |
                                                       MODE_ORACLE |
                                                       MODE_MSSQL |
                                                       MODE_DB2 |
                                                       MODE_MAXDB |
                                                       MODE_ANSI)) != 0;
  buff->append("CREATE ", 7);
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  if (!foreign_db_mode)
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  {
    buff->append("ALGORITHM=", 10);
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    switch((int8)table->algorithm)
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    {
    case VIEW_ALGORITHM_UNDEFINED:
      buff->append("UNDEFINED ", 10);
      break;
    case VIEW_ALGORITHM_TMPTABLE:
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      buff->append("TEMPTABLE ", 10);
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      break;
    case VIEW_ALGORITHM_MERGE:
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      buff->append("MERGE ", 6);
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      break;
    default:
	DBUG_ASSERT(0); // never should happen
    }
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  }
  buff->append("VIEW ", 5);
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  append_identifier(thd, buff, table->view_db.str, table->view_db.length);
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  buff->append('.');
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  append_identifier(thd, buff, table->view_name.str, table->view_name.length);
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  buff->append(" AS ", 4);
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  /*
    We can't just use table->query, because our SQL_MODE may trigger
    a different syntax, like when ANSI_QUOTES is defined.
  */
  table->view->unit.print(buff);

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  if (table->with_check != VIEW_CHECK_NONE)
  {
    if (table->with_check == VIEW_CHECK_LOCAL)
      buff->append(" WITH LOCAL CHECK OPTION", 24);
    else
      buff->append(" WITH CASCADED CHECK OPTION", 27);
  }
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  return 0;
}


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/****************************************************************************
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  Return info about all processes
  returns for each thread: thread id, user, host, db, command, info
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****************************************************************************/

class thread_info :public ilink {
public:
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  static void *operator new(size_t size)
  {
    return (void*) sql_alloc((uint) size);
  }
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  static void operator delete(void *ptr __attribute__((unused)),
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                              size_t size __attribute__((unused)))
  { TRASH(ptr, size); }
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  ulong thread_id;
  time_t start_time;
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  uint   command;
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  const char *user,*host,*db,*proc_info,*state_info;
  char *query;
};

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#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
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template class I_List<thread_info>;
#endif

void mysqld_list_processes(THD *thd,const char *user, bool verbose)
{
  Item *field;
  List<Item> field_list;
  I_List<thread_info> thread_infos;
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  ulong max_query_length= (verbose ? thd->variables.max_allowed_packet :
			   PROCESS_LIST_WIDTH);
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  Protocol *protocol= thd->protocol;
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  DBUG_ENTER("mysqld_list_processes");

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  field_list.push_back(new Item_int("Id",0,11));
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  field_list.push_back(new Item_empty_string("User",16));
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  field_list.push_back(new Item_empty_string("Host",LIST_PROCESS_HOST_LEN));
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  field_list.push_back(field=new Item_empty_string("db",NAME_LEN));
  field->maybe_null=1;
  field_list.push_back(new Item_empty_string("Command",16));
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  field_list.push_back(new Item_return_int("Time",7, FIELD_TYPE_LONG));
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  field_list.push_back(field=new Item_empty_string("State",30));
  field->maybe_null=1;
  field_list.push_back(field=new Item_empty_string("Info",max_query_length));
  field->maybe_null=1;
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  if (protocol->send_fields(&field_list,
                            Protocol::SEND_NUM_ROWS | Protocol::SEND_EOF))
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    DBUG_VOID_RETURN;

  VOID(pthread_mutex_lock(&LOCK_thread_count)); // For unlink from list
  if (!thd->killed)
  {
    I_List_iterator<THD> it(threads);
    THD *tmp;
    while ((tmp=it++))
    {
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      struct st_my_thread_var *mysys_var;
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      if ((tmp->vio_ok() || tmp->system_thread) &&
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          (!user || (tmp->user && !strcmp(tmp->user,user))))
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      {
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        thread_info *thd_info=new thread_info;

        thd_info->thread_id=tmp->thread_id;
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        thd_info->user=thd->strdup(tmp->user ? tmp->user :
				   (tmp->system_thread ?
				    "system user" : "unauthenticated user"));
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	if (tmp->peer_port && (tmp->host || tmp->ip) && thd->host_or_ip[0])
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	{
	  if ((thd_info->host= thd->alloc(LIST_PROCESS_HOST_LEN+1)))
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	    my_snprintf((char *) thd_info->host, LIST_PROCESS_HOST_LEN,
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			"%s:%u", tmp->host_or_ip, tmp->peer_port);
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	}
	else
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	  thd_info->host= thd->strdup(tmp->host_or_ip);
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        if ((thd_info->db=tmp->db))             // Safe test
          thd_info->db=thd->strdup(thd_info->db);
        thd_info->command=(int) tmp->command;
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        if ((mysys_var= tmp->mysys_var))
          pthread_mutex_lock(&mysys_var->mutex);
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        thd_info->proc_info= (char*) (tmp->killed == THD::KILL_CONNECTION? "Killed" : 0);
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#ifndef EMBEDDED_LIBRARY
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        thd_info->state_info= (char*) (tmp->locked ? "Locked" :
                                       tmp->net.reading_or_writing ?
                                       (tmp->net.reading_or_writing == 2 ?
                                        "Writing to net" :
                                        thd_info->command == COM_SLEEP ? "" :
                                        "Reading from net") :
                                       tmp->proc_info ? tmp->proc_info :
                                       tmp->mysys_var &&
                                       tmp->mysys_var->current_cond ?
                                       "Waiting on cond" : NullS);
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#else
        thd_info->state_info= (char*)"Writing to net";
#endif
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        if (mysys_var)
          pthread_mutex_unlock(&mysys_var->mutex);
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#if !defined(DONT_USE_THR_ALARM) && ! defined(SCO)
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        if (pthread_kill(tmp->real_id,0))
          tmp->proc_info="*** DEAD ***";        // This shouldn't happen
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#endif
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#ifdef EXTRA_DEBUG
        thd_info->start_time= tmp->time_after_lock;
#else
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        thd_info->start_time= tmp->start_time;
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#endif
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        thd_info->query=0;
        if (tmp->query)
        {
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	  /* 
            query_length is always set to 0 when we set query = NULL; see
	    the comment in sql_class.h why this prevents crashes in possible
            races with query_length
          */
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          uint length= min(max_query_length, tmp->query_length);
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          thd_info->query=(char*) thd->strmake(tmp->query,length);
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        }
        thread_infos.append(thd_info);
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      }
    }
  }
  VOID(pthread_mutex_unlock(&LOCK_thread_count));

  thread_info *thd_info;
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  time_t now= time(0);
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  while ((thd_info=thread_infos.get()))
  {
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    protocol->prepare_for_resend();
    protocol->store((ulonglong) thd_info->thread_id);
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    protocol->store(thd_info->user, system_charset_info);
    protocol->store(thd_info->host, system_charset_info);
    protocol->store(thd_info->db, system_charset_info);
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    if (thd_info->proc_info)
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      protocol->store(thd_info->proc_info, system_charset_info);
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    else
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      protocol->store(command_name[thd_info->command], system_charset_info);
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    if (thd_info->start_time)
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      protocol->store((uint32) (now - thd_info->start_time));
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    else
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      protocol->store_null();
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    protocol->store(thd_info->state_info, system_charset_info);
    protocol->store(thd_info->query, system_charset_info);
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    if (protocol->write())
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      break; /* purecov: inspected */
  }
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  send_eof(thd);
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  DBUG_VOID_RETURN;
}

/*****************************************************************************
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  Status functions
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*****************************************************************************/

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static bool show_status_array(THD *thd, const char *wild,
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                              show_var_st *variables,
                              enum enum_var_type value_type,
                              struct system_status_var *status_var,
                              const char *prefix, TABLE *table)
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{
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  char buff[1024], *prefix_end;
  /* the variable name should not be longer then 80 characters */
  char name_buffer[80];
  int len;
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  LEX_STRING null_lex_str;
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  DBUG_ENTER("show_status_array");
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  null_lex_str.str= 0;				// For sys_var->value_ptr()
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  null_lex_str.length= 0;
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  prefix_end=strnmov(name_buffer, prefix, sizeof(name_buffer)-1);
  len=name_buffer + sizeof(name_buffer) - prefix_end;

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  for (; variables->name; variables++)
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  {
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    strnmov(prefix_end, variables->name, len);
    name_buffer[sizeof(name_buffer)-1]=0;       /* Safety */
    SHOW_TYPE show_type=variables->type;
    if (show_type == SHOW_VARS)
    {
      show_status_array(thd, wild, (show_var_st *) variables->value,
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                        value_type, status_var, variables->name, table);
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    }
    else
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    {
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      if (!(wild && wild[0] && wild_case_compare(system_charset_info,
                                                 name_buffer, wild)))
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      {
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        char *value=variables->value;
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        const char *pos, *end;                  // We assign a lot of const's
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        long nr;
        if (show_type == SHOW_SYS)
        {
          show_type= ((sys_var*) value)->type();
          value=     (char*) ((sys_var*) value)->value_ptr(thd, value_type,
                                                           &null_lex_str);
        }

        pos= end= buff;
        switch (show_type) {
        case SHOW_LONG_STATUS:
        case SHOW_LONG_CONST_STATUS:
          value= ((char *) status_var + (ulong) value);
          /* fall through */
        case SHOW_LONG:
        case SHOW_LONG_CONST:
          end= int10_to_str(*(long*) value, buff, 10);
          break;
        case SHOW_LONGLONG:
          end= longlong10_to_str(*(longlong*) value, buff, 10);
          break;
        case SHOW_HA_ROWS:
          end= longlong10_to_str((longlong) *(ha_rows*) value, buff, 10);
          break;
        case SHOW_BOOL:
          end= strmov(buff, *(bool*) value ? "ON" : "OFF");
          break;
        case SHOW_MY_BOOL:
          end= strmov(buff, *(my_bool*) value ? "ON" : "OFF");
          break;
        case SHOW_INT_CONST:
        case SHOW_INT:
          end= int10_to_str((long) *(uint32*) value, buff, 10);
          break;
        case SHOW_HAVE:
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        {
          SHOW_COMP_OPTION tmp= *(SHOW_COMP_OPTION*) value;
          pos= show_comp_option_name[(int) tmp];
          end= strend(pos);
          break;
        }
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        case SHOW_CHAR:
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        {
          if (!(pos= value))
            pos= "";
          end= strend(pos);
          break;
        }
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        case SHOW_STARTTIME:
          nr= (long) (thd->query_start() - start_time);
          end= int10_to_str(nr, buff, 10);
          break;
        case SHOW_QUESTION:
          end= int10_to_str((long) thd->query_id, buff, 10);
          break;
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#ifdef HAVE_REPLICATION
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        case SHOW_RPL_STATUS:
          end= strmov(buff, rpl_status_type[(int)rpl_status]);
          break;
        case SHOW_SLAVE_RUNNING:
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        {
          pthread_mutex_lock(&LOCK_active_mi);
          end= strmov(buff, (active_mi->slave_running &&
                             active_mi->rli.slave_running) ? "ON" : "OFF");
          pthread_mutex_unlock(&LOCK_active_mi);
          break;
        }
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        case SHOW_SLAVE_RETRIED_TRANS:
        {
          /*
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            TODO: in 5.1 with multimaster, have one such counter per line in
            SHOW SLAVE STATUS, and have the sum over all lines here.
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          */
	  pthread_mutex_lock(&LOCK_active_mi);
          pthread_mutex_lock(&active_mi->rli.data_lock);
	  end= int10_to_str(active_mi->rli.retried_trans, buff, 10);
          pthread_mutex_unlock(&active_mi->rli.data_lock);
	  pthread_mutex_unlock(&LOCK_active_mi);
	  break;
        }
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        case SHOW_SLAVE_SKIP_ERRORS:
        {
          MY_BITMAP *bitmap= (MY_BITMAP *)value;
          if (!use_slave_mask || bitmap_is_clear_all(bitmap))
          {
            end= strmov(buff, "OFF");
          }
          else if (bitmap_is_set_all(bitmap))
          {
            end= strmov(buff, "ALL");
          }
          else
          {
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            /* 10 is enough assuming errors are max 4 digits */
            int i;
            for (i= 1;
                 i < MAX_SLAVE_ERROR && (uint) (end-buff) < sizeof(buff)-10;
                 i++)
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            {
              if (bitmap_is_set(bitmap, i))
              {
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                end= int10_to_str(i, (char*) end, 10);
                *(char*) end++= ',';
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              }
            }
            if (end != buff)
              end--;				// Remove last ','
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            if (i < MAX_SLAVE_ERROR)
              end= strmov((char*) end, "...");  // Couldn't show all errors
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          }
          break;
        }
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#endif /* HAVE_REPLICATION */
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        case SHOW_OPENTABLES:
          end= int10_to_str((long) cached_tables(), buff, 10);
          break;
        case SHOW_CHAR_PTR:
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        {
          if (!(pos= *(char**) value))
            pos= "";
          end= strend(pos);
          break;
        }
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        case SHOW_DOUBLE_STATUS:
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        {
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          value= ((char *) status_var + (ulong) value);
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          end= buff + sprintf(buff, "%f", *(double*) value);
          break;
        }
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#ifdef HAVE_OPENSSL
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          /* First group - functions relying on CTX */
        case SHOW_SSL_CTX_SESS_ACCEPT:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_accept(ssl_acceptor_fd->
                                                        ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_ACCEPT_GOOD:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_accept_good(ssl_acceptor_fd->
                                                             ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_CONNECT_GOOD:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_connect_good(ssl_acceptor_fd->
                                                              ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_ACCEPT_RENEGOTIATE:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_accept_renegotiate(ssl_acceptor_fd->ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_CONNECT_RENEGOTIATE:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_connect_renegotiate(ssl_acceptor_fd-> ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_CB_HITS:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_cb_hits(ssl_acceptor_fd->
                                                         ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_HITS:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_hits(ssl_acceptor_fd->
                                                      ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_CACHE_FULL:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_cache_full(ssl_acceptor_fd->
                                                            ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_MISSES:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_misses(ssl_acceptor_fd->
                                                        ssl_context)),
                            buff, 10);
          break;
        case SHOW_SSL_CTX_SESS_TIMEOUTS:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_timeouts(ssl_acceptor_fd->ssl_context)),
                            buff,10);
          break;
        case SHOW_SSL_CTX_SESS_NUMBER:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_number(ssl_acceptor_fd->ssl_context)),
                            buff,10);
          break;
        case SHOW_SSL_CTX_SESS_CONNECT:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_connect(ssl_acceptor_fd->ssl_context)),
                            buff,10);
          break;
        case SHOW_SSL_CTX_SESS_GET_CACHE_SIZE:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_sess_get_cache_size(ssl_acceptor_fd->ssl_context)),
                            buff,10);
          break;
        case SHOW_SSL_CTX_GET_VERIFY_MODE:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_get_verify_mode(ssl_acceptor_fd->ssl_context)),
                            buff,10);
          break;
        case SHOW_SSL_CTX_GET_VERIFY_DEPTH:
          end= int10_to_str((long) (!ssl_acceptor_fd ? 0 :
                                    SSL_CTX_get_verify_depth(ssl_acceptor_fd->ssl_context)),
                            buff,10);
          break;
        case SHOW_SSL_CTX_GET_SESSION_CACHE_MODE:
          if (!ssl_acceptor_fd)
          {
            pos= "NONE";
            end= pos+4;
            break;
          }
          switch (SSL_CTX_get_session_cache_mode(ssl_acceptor_fd->ssl_context))
          {
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          case SSL_SESS_CACHE_OFF:
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            pos= "OFF";
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            break;
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          case SSL_SESS_CACHE_CLIENT:
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            pos= "CLIENT";
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            break;
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          case SSL_SESS_CACHE_SERVER:
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            pos= "SERVER";
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            break;
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          case SSL_SESS_CACHE_BOTH:
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            pos= "BOTH";
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            break;
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          case SSL_SESS_CACHE_NO_AUTO_CLEAR:
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            pos= "NO_AUTO_CLEAR";
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            break;
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          case SSL_SESS_CACHE_NO_INTERNAL_LOOKUP:
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            pos= "NO_INTERNAL_LOOKUP";
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            break;
          default:
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            pos= "Unknown";
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            break;
          }
          end= strend(pos);
          break;
          /* First group - functions relying on SSL */
        case SHOW_SSL_GET_VERSION:
          pos= (thd->net.vio->ssl_arg ?
                SSL_get_version((SSL*) thd->net.vio->ssl_arg) : "");
          end= strend(pos);
          break;
        case SHOW_SSL_SESSION_REUSED:
          end= int10_to_str((long) (thd->net.vio->ssl_arg ?
                                    SSL_session_reused((SSL*) thd->net.vio->
                                                       ssl_arg) :
                                    0),
                            buff, 10);
          break;
        case SHOW_SSL_GET_DEFAULT_TIMEOUT:
          end= int10_to_str((long) (thd->net.vio->ssl_arg ?
                                    SSL_get_default_timeout((SSL*) thd->net.vio->
                                                            ssl_arg) :
                                    0),
                            buff, 10);
          break;
        case SHOW_SSL_GET_VERIFY_MODE:
          end= int10_to_str((long) (thd->net.vio->ssl_arg ?
                                    SSL_get_verify_mode((SSL*) thd->net.vio->
                                                        ssl_arg):
                                    0),
                            buff, 10);
          break;
        case SHOW_SSL_GET_VERIFY_DEPTH:
          end= int10_to_str((long) (thd->net.vio->ssl_arg ?
                                    SSL_get_verify_depth((SSL*) thd->net.vio->
                                                         ssl_arg):
                                    0),
                            buff, 10);
          break;
        case SHOW_SSL_GET_CIPHER:
          pos= (thd->net.vio->ssl_arg ?
                SSL_get_cipher((SSL*) thd->net.vio->ssl_arg) : "" );
          end= strend(pos);
          break;
        case SHOW_SSL_GET_CIPHER_LIST:
          if (thd->net.vio->ssl_arg)
          {
            char *to= buff;
            for (int i=0 ; i++ ;)
            {
              const char *p= SSL_get_cipher_list((SSL*) thd->net.vio->ssl_arg,i);
              if (p == NULL)
                break;
              to= strmov(to, p);
              *to++= ':';
            }
            if (to != buff)
              to--;				// Remove last ':'
            end= to;
          }
          break;
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#endif /* HAVE_OPENSSL */
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        case SHOW_KEY_CACHE_LONG:
        case SHOW_KEY_CACHE_CONST_LONG:
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          value= (value-(char*) &dflt_key_cache_var)+ (char*) dflt_key_cache;
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          end= int10_to_str(*(long*) value, buff, 10);
          break;
        case SHOW_UNDEF:				// Show never happen
        case SHOW_SYS:
          break;					// Return empty string
        default:
          break;
        }
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        restore_record(table, s->default_values);
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        table->field[0]->store(name_buffer, strlen(name_buffer),
                               system_charset_info);
        table->field[1]->store(pos, (uint32) (end - pos), system_charset_info);
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        if (schema_table_store_record(thd, table))
          DBUG_RETURN(TRUE);
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      }
    }
  }
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  DBUG_RETURN(FALSE);
}


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/* collect status for all running threads */

void calc_sum_of_all_status(STATUS_VAR *to)
{
  DBUG_ENTER("calc_sum_of_all_status");

  /* Ensure that thread id not killed during loop */
  VOID(pthread_mutex_lock(&LOCK_thread_count)); // For unlink from list

  I_List_iterator<THD> it(threads);
  THD *tmp;
  
  /* Get global values as base */
  *to= global_status_var;
  
  /* Add to this status from existing threads */
  while ((tmp= it++))
    add_to_status(to, &tmp->status_var);
  
  VOID(pthread_mutex_unlock(&LOCK_thread_count));
  DBUG_VOID_RETURN;
}


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LEX_STRING *make_lex_string(THD *thd, LEX_STRING *lex_str,
                            const char* str, uint length,
                            bool allocate_lex_string)
{
  MEM_ROOT *mem= thd->mem_root;
  if (allocate_lex_string)
    lex_str= (LEX_STRING *)thd->alloc(sizeof(LEX_STRING));
  lex_str->str= strmake_root(mem, str, length);
  lex_str->length= length;
  return lex_str;
}


/* INFORMATION_SCHEMA name */
LEX_STRING information_schema_name= {(char*)"information_schema", 18};
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/* This is only used internally, but we need it here as a forward reference */
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extern ST_SCHEMA_TABLE schema_tables[];

typedef struct st_index_field_values
{
  const char *db_value, *table_value;
} INDEX_FIELD_VALUES;


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/*
  Store record to I_S table, convert HEAP table
  to MyISAM if necessary

  SYNOPSIS
    schema_table_store_record()
    thd                   thread handler
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    table                 Information schema table to be updated

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  RETURN
    0	                  success
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    1	                  error
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*/

static bool schema_table_store_record(THD *thd, TABLE *table)
{
  int error;
  if ((error= table->file->write_row(table->record[0])))
  {
    if (create_myisam_from_heap(thd, table, 
                                table->pos_in_table_list->schema_table_param,
                                error, 0))
      return 1;
  }
  return 0;
}


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void get_index_field_values(LEX *lex, INDEX_FIELD_VALUES *index_field_values)
{
  const char *wild= lex->wild ? lex->wild->ptr() : NullS;
  switch (lex->orig_sql_command) {
  case SQLCOM_SHOW_DATABASES:
    index_field_values->db_value= wild;
    break;
  case SQLCOM_SHOW_TABLES:
  case SQLCOM_SHOW_TABLE_STATUS:
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  case SQLCOM_SHOW_TRIGGERS:
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    index_field_values->db_value= lex->current_select->db;
    index_field_values->table_value= wild;
    break;
  default:
    index_field_values->db_value= NullS;
    index_field_values->table_value= NullS;
    break;
  }
}


int make_table_list(THD *thd, SELECT_LEX *sel,
                    char *db, char *table)
{
  Table_ident *table_ident;
  LEX_STRING ident_db, ident_table;
  ident_db.str= db; 
  ident_db.length= strlen(db);
  ident_table.str= table;
  ident_table.length= strlen(table);
  table_ident= new Table_ident(thd, ident_db, ident_table, 1);
  sel->init_query();
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  if (!sel->add_table_to_list(thd, table_ident, 0, 0, TL_READ,
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                             (List<String> *) 0, (List<String> *) 0))
    return 1;
  return 0;
}


bool uses_only_table_name_fields(Item *item, TABLE_LIST *table)
{
  if (item->type() == Item::FUNC_ITEM)
  {
    Item_func *item_func= (Item_func*)item;
    Item **child;
    Item **item_end= (item_func->arguments()) + item_func->argument_count();
    for (child= item_func->arguments(); child != item_end; child++)
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    {
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      if (!uses_only_table_name_fields(*child, table))
        return 0;
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    }
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  }
  else if (item->type() == Item::FIELD_ITEM)
  {
    Item_field *item_field= (Item_field*)item;
    CHARSET_INFO *cs= system_charset_info;
    ST_SCHEMA_TABLE *schema_table= table->schema_table;
    ST_FIELD_INFO *field_info= schema_table->fields_info;
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    const char *field_name1= schema_table->idx_field1 >= 0 ? field_info[schema_table->idx_field1].field_name : "";
    const char *field_name2= schema_table->idx_field2 >= 0 ? field_info[schema_table->idx_field2].field_name : "";
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    if (table->table != item_field->field->table ||
        (cs->coll->strnncollsp(cs, (uchar *) field_name1, strlen(field_name1),
                               (uchar *) item_field->field_name, 
                               strlen(item_field->field_name), 0) &&
         cs->coll->strnncollsp(cs, (uchar *) field_name2, strlen(field_name2),
                               (uchar *) item_field->field_name, 
                               strlen(item_field->field_name), 0)))
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      return 0;
  }
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  else if (item->type() == Item::REF_ITEM)
    return uses_only_table_name_fields(item->real_item(), table);
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  if (item->type() == Item::SUBSELECT_ITEM &&
      !item->const_item())
    return 0;

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  return 1;
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}


static COND * make_cond_for_info_schema(COND *cond, TABLE_LIST *table)
{
  if (!cond)
    return (COND*) 0;
  if (cond->type() == Item::COND_ITEM)
  {
    if (((Item_cond*) cond)->functype() == Item_func::COND_AND_FUNC)
    {
      /* Create new top level AND item */
      Item_cond_and *new_cond=new Item_cond_and;
      if (!new_cond)
	return (COND*) 0;
      List_iterator<Item> li(*((Item_cond*) cond)->argument_list());
      Item *item;
      while ((item=li++))
      {
	Item *fix= make_cond_for_info_schema(item, table);
	if (fix)
	  new_cond->argument_list()->push_back(fix);
      }
      switch (new_cond->argument_list()->elements) {
      case 0:
	return (COND*) 0;
      case 1:
	return new_cond->argument_list()->head();
      default:
	new_cond->quick_fix_field();
	return new_cond;
      }
    }
    else
    {						// Or list
      Item_cond_or *new_cond=new Item_cond_or;
      if (!new_cond)
	return (COND*) 0;
      List_iterator<Item> li(*((Item_cond*) cond)->argument_list());
      Item *item;
      while ((item=li++))
      {
	Item *fix=make_cond_for_info_schema(item, table);
	if (!fix)
	  return (COND*) 0;
	new_cond->argument_list()->push_back(fix);
      }
      new_cond->quick_fix_field();
      new_cond->top_level_item();
      return new_cond;
    }
  }

  if (!uses_only_table_name_fields(cond, table))
    return (COND*) 0;
  return cond;
}


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enum enum_schema_tables get_schema_table_idx(ST_SCHEMA_TABLE *schema_table)
{
  return (enum enum_schema_tables) (schema_table - &schema_tables[0]);
}


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/*
1840
  Create db names list. Information schema name always is first in list
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  SYNOPSIS
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    make_db_list()
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    thd                   thread handler
    files                 list of db names
    wild                  wild string
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    idx_field_vals        idx_field_vals->db_name contains db name or
                          wild string
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    with_i_schema         returns 1 if we added 'IS' name to list
                          otherwise returns 0
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    is_wild_value         if value is 1 then idx_field_vals->db_name is
                          wild string otherwise it's db name; 
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  RETURN
    1	                  error
    0	                  success
*/

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int make_db_list(THD *thd, List<char> *files,
                 INDEX_FIELD_VALUES *idx_field_vals,
                 bool *with_i_schema, bool is_wild_value)
1862
{
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  LEX *lex= thd->lex;
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  *with_i_schema= 0;
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  get_index_field_values(lex, idx_field_vals);
  if (is_wild_value)
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  {
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    /*
      This part of code is only for SHOW DATABASES command.
      idx_field_vals->db_value can be 0 when we don't use
      LIKE clause (see also get_index_field_values() function)
    */
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    if (!idx_field_vals->db_value ||
        !wild_case_compare(system_charset_info, 
                           information_schema_name.str,
                           idx_field_vals->db_value))
    {
      *with_i_schema= 1;
      if (files->push_back(thd->strdup(information_schema_name.str)))
        return 1;
    }
    return mysql_find_files(thd, files, NullS, mysql_data_home,
                            idx_field_vals->db_value, 1);
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  }
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  /*
    This part of code is for SHOW TABLES, SHOW TABLE STATUS commands.
    idx_field_vals->db_value can't be 0 (see get_index_field_values()
    function). lex->orig_sql_command can be not equal to SQLCOM_END
    only in case of executing of SHOW commands.
  */
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  if (lex->orig_sql_command != SQLCOM_END)
  {
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    if (!my_strcasecmp(system_charset_info, information_schema_name.str,
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                       idx_field_vals->db_value))
    {
      *with_i_schema= 1;
      return files->push_back(thd->strdup(information_schema_name.str));
    }
    return files->push_back(thd->strdup(idx_field_vals->db_value));
  }

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  /*
    Create list of existing databases. It is used in case
    of select from information schema table
  */
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  if (files->push_back(thd->strdup(information_schema_name.str)))
    return 1;
  *with_i_schema= 1;
  return mysql_find_files(thd, files, NullS, mysql_data_home, NullS, 1);
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}


int schema_tables_add(THD *thd, List<char> *files, const char *wild)
{
  ST_SCHEMA_TABLE *tmp_schema_table= schema_tables;
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  for (; tmp_schema_table->table_name; tmp_schema_table++)
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  {
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    if (tmp_schema_table->hidden)
      continue;
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    if (wild)
    {
      if (lower_case_table_names)
      {
        if (wild_case_compare(files_charset_info,
                              tmp_schema_table->table_name,
                              wild))
          continue;
      }
      else if (wild_compare(tmp_schema_table->table_name, wild, 0))
        continue;
    }
    if (files->push_back(thd->strdup(tmp_schema_table->table_name)))
      return 1;
  }
  return 0;
}


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int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond)
{
  LEX *lex= thd->lex;
  TABLE *table= tables->table;
  SELECT_LEX *select_lex= &lex->select_lex;
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  SELECT_LEX *old_all_select_lex= lex->all_selects_list;
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  TABLE_LIST **save_query_tables_last= lex->query_tables_last;
  enum_sql_command save_sql_command= lex->sql_command;
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  SELECT_LEX *lsel= tables->schema_select_lex;
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  ST_SCHEMA_TABLE *schema_table= tables->schema_table;
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  SELECT_LEX sel;
  INDEX_FIELD_VALUES idx_field_vals;
  char path[FN_REFLEN], *end, *base_name, *file_name;
  uint len;
  bool with_i_schema;
  enum enum_schema_tables schema_table_idx;
  List<char> bases;
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  List_iterator_fast<char> it(bases);
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  COND *partial_cond; 
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  uint derived_tables= lex->derived_tables; 
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  int error= 1;
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  Open_tables_state open_tables_state_backup;
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  DBUG_ENTER("get_all_tables");

  LINT_INIT(end);
  LINT_INIT(len);
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  /*
    Let us set fake sql_command so views won't try to merge
    themselves into main statement.
  */
  lex->sql_command= SQLCOM_SHOW_FIELDS;

  /*
    We should not introduce deadlocks even if we already have some
    tables open and locked, since we won't lock tables which we will
    open and will ignore possible name-locks for these tables.
  */
  thd->reset_n_backup_open_tables_state(&open_tables_state_backup);

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  if (lsel)
  {
    TABLE_LIST *show_table_list= (TABLE_LIST*) lsel->table_list.first;
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    bool res;

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    lex->all_selects_list= lsel;
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    res= open_normal_and_derived_tables(thd, show_table_list,
                                        MYSQL_LOCK_IGNORE_FLUSH);
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    if (schema_table->process_table(thd, show_table_list,
                                    table, res, show_table_list->db,
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                                    show_table_list->alias))
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      goto err;
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    close_thread_tables(thd);
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    show_table_list->table= 0;
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    error= 0;
    goto err;
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  }

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  schema_table_idx= get_schema_table_idx(schema_table);
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2000 2001
  if (make_db_list(thd, &bases, &idx_field_vals,
                   &with_i_schema, 0))
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    goto err;
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  partial_cond= make_cond_for_info_schema(cond, tables);
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  it.rewind(); /* To get access to new elements in basis list */
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  while ((base_name= it++) ||
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	 /*
	   generate error for non existing database.
	   (to save old behaviour for SHOW TABLES FROM db)
	 */
	 ((lex->orig_sql_command == SQLCOM_SHOW_TABLES ||
           lex->orig_sql_command == SQLCOM_SHOW_TABLE_STATUS) &&
	  (base_name= select_lex->db) && !bases.elements))
  {
#ifndef NO_EMBEDDED_ACCESS_CHECKS
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    if (with_i_schema ||   // don't check the rights if information schema db
        !check_access(thd,SELECT_ACL, base_name, &thd->col_access,0,1) ||
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        thd->master_access & (DB_ACLS | SHOW_DB_ACL) ||
	acl_get(thd->host, thd->ip, thd->priv_user, base_name,0) ||
	(grant_option && !check_grant_db(thd, base_name)))
#endif
    {
      List<char> files;
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      if (with_i_schema)                      // information schema table names
      {
        if (schema_tables_add(thd, &files, idx_field_vals.table_value))
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          goto err;
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      }
      else
      {
        strxmov(path, mysql_data_home, "/", base_name, NullS);
        end= path + (len= unpack_dirname(path,path));
        len= FN_LEN - len;
        if (mysql_find_files(thd, &files, base_name, 
                             path, idx_field_vals.table_value, 0))
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          goto err;
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      }
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      List_iterator_fast<char> it_files(files);
      while ((file_name= it_files++))
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      {
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	restore_record(table, s->default_values);
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        table->field[schema_table->idx_field1]->
          store(base_name, strlen(base_name), system_charset_info);
        table->field[schema_table->idx_field2]->
          store(file_name, strlen(file_name),system_charset_info);
        if (!partial_cond || partial_cond->val_int())
        {
          if (schema_table_idx == SCH_TABLE_NAMES)
          {
            if (lex->verbose || lex->orig_sql_command == SQLCOM_END)
            {
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              if (with_i_schema)
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              {
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                table->field[3]->store("SYSTEM VIEW", 11, system_charset_info);
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              }
              else
              {
                my_snprintf(end, len, "/%s%s", file_name, reg_ext);
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                switch (mysql_frm_type(path)) {
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                case FRMTYPE_ERROR:
                  table->field[3]->store("ERROR", 5, system_charset_info);
                  break;
                case FRMTYPE_TABLE:
                  table->field[3]->store("BASE TABLE", 10, system_charset_info);
                  break;
                case FRMTYPE_VIEW:
                  table->field[3]->store("VIEW", 4, system_charset_info);
                  break;
                default:
                  DBUG_ASSERT(0);
                }
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              }
            }
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            if (schema_table_store_record(thd, table))
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              goto err;
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          }
          else
          {
            int res;
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            /*
              Set the parent lex of 'sel' because it is needed by sel.init_query()
              which is called inside make_table_list.
            */
            sel.parent_lex= lex;
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            if (make_table_list(thd, &sel, base_name, file_name))
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              goto err;
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            TABLE_LIST *show_table_list= (TABLE_LIST*) sel.table_list.first;
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            lex->all_selects_list= &sel;
            lex->derived_tables= 0;
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            res= open_normal_and_derived_tables(thd, show_table_list,
                                                MYSQL_LOCK_IGNORE_FLUSH);
2093
            if (schema_table->process_table(thd, show_table_list, table,
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                                            res, base_name,
                                            show_table_list->alias))
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              goto err;
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            close_thread_tables(thd);
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          }
        }
      }
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      /*
        If we have information schema its always the first table and only
        the first table. Reset for other tables.
      */
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      with_i_schema= 0;
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    }
  }
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  error= 0;
err:
2111
  thd->restore_backup_open_tables_state(&open_tables_state_backup);
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  lex->derived_tables= derived_tables;
  lex->all_selects_list= old_all_select_lex;
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  lex->query_tables_last= save_query_tables_last;
  *save_query_tables_last= 0;
  lex->sql_command= save_sql_command;
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  DBUG_RETURN(error);
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}


2121
bool store_schema_shemata(THD* thd, TABLE *table, const char *db_name,
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                          CHARSET_INFO *cs)
2123
{
2124
  restore_record(table, s->default_values);
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  table->field[1]->store(db_name, strlen(db_name), system_charset_info);
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  table->field[2]->store(cs->csname, strlen(cs->csname), system_charset_info);
  table->field[3]->store(cs->name, strlen(cs->name), system_charset_info);
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  return schema_table_store_record(thd, table);
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}


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int fill_schema_shemata(THD *thd, TABLE_LIST *tables, COND *cond)
{
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  char path[FN_REFLEN];
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  bool found_libchar;
  INDEX_FIELD_VALUES idx_field_vals;
  List<char> files;
  char *file_name;
  uint length;
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  bool with_i_schema;
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  HA_CREATE_INFO create;
  TABLE *table= tables->table;
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  DBUG_ENTER("fill_schema_shemata");
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  if (make_db_list(thd, &files, &idx_field_vals,
                   &with_i_schema, 1))
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    DBUG_RETURN(1);
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  List_iterator_fast<char> it(files);
  while ((file_name=it++))
  {
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    if (with_i_schema)       // information schema name is always first in list
    {
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      if (store_schema_shemata(thd, table, file_name,
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                               system_charset_info))
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        DBUG_RETURN(1);
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      with_i_schema= 0;
      continue;
    }
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
    if (thd->master_access & (DB_ACLS | SHOW_DB_ACL) ||
	acl_get(thd->host, thd->ip, thd->priv_user, file_name,0) ||
	(grant_option && !check_grant_db(thd, file_name)))
#endif
    {
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      strxmov(path, mysql_data_home, "/", file_name, NullS);
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      length=unpack_dirname(path,path);		// Convert if not unix
      found_libchar= 0;
      if (length && path[length-1] == FN_LIBCHAR)
      {
	found_libchar= 1;
	path[length-1]=0;			// remove ending '\'
      }

      if (found_libchar)
	path[length-1]= FN_LIBCHAR;
      strmov(path+length, MY_DB_OPT_FILE);
      load_db_opt(thd, path, &create);
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      if (store_schema_shemata(thd, table, file_name, 
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                               create.default_table_charset))
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        DBUG_RETURN(1);
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    }
  }
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  DBUG_RETURN(0);
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}


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static int get_schema_tables_record(THD *thd, struct st_table_list *tables,
				    TABLE *table, bool res,
				    const char *base_name,
				    const char *file_name)
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{
  const char *tmp_buff;
  TIME time;
  CHARSET_INFO *cs= system_charset_info;
  DBUG_ENTER("get_schema_tables_record");
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  restore_record(table, s->default_values);
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  table->field[1]->store(base_name, strlen(base_name), cs);
  table->field[2]->store(file_name, strlen(file_name), cs);
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  if (res)
  {
    /*
      there was errors during opening tables
    */
    const char *error= thd->net.last_error;
    table->field[20]->store(error, strlen(error), cs);
    thd->clear_error();
  }
  else if (tables->view)
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  {
    table->field[3]->store("VIEW", 4, cs);
    table->field[20]->store("view", 4, cs);
  }
  else
  {
    TABLE *show_table= tables->table;
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    TABLE_SHARE *share= show_table->s;
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    handler *file= show_table->file;
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    file->info(HA_STATUS_VARIABLE | HA_STATUS_TIME | HA_STATUS_AUTO |
               HA_STATUS_NO_LOCK);
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    if (share->tmp_table == SYSTEM_TMP_TABLE)
      table->field[3]->store("SYSTEM VIEW", 11, cs);
    else if (share->tmp_table)
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      table->field[3]->store("TEMPORARY", 9, cs);
    else
      table->field[3]->store("BASE TABLE", 10, cs);

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    for (int i= 4; i < 20; i++)
    {
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      if (i == 7 || (i > 12 && i < 17) || i == 18)
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        continue;
      table->field[i]->set_notnull();
    }
    tmp_buff= file->table_type();
    table->field[4]->store(tmp_buff, strlen(tmp_buff), cs);
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    table->field[5]->store((longlong) share->frm_version);
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    enum row_type row_type = file->get_row_type();
    switch (row_type) {
    case ROW_TYPE_NOT_USED:
    case ROW_TYPE_DEFAULT:
      tmp_buff= ((share->db_options_in_use &
		  HA_OPTION_COMPRESS_RECORD) ? "Compressed" :
		 (share->db_options_in_use & HA_OPTION_PACK_RECORD) ?
		 "Dynamic" : "Fixed");
      break;
    case ROW_TYPE_FIXED:
      tmp_buff= "Fixed";
      break;
    case ROW_TYPE_DYNAMIC:
      tmp_buff= "Dynamic";
      break;
    case ROW_TYPE_COMPRESSED:
      tmp_buff= "Compressed";
      break;
    case ROW_TYPE_REDUNDANT:
      tmp_buff= "Redundant";
      break;
    case ROW_TYPE_COMPACT:
      tmp_buff= "Compact";
      break;
    }
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    table->field[6]->store(tmp_buff, strlen(tmp_buff), cs);
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    if (!tables->schema_table)
    {
      table->field[7]->store((longlong) file->records);
      table->field[7]->set_notnull();
    }
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    table->field[8]->store((longlong) file->mean_rec_length);
    table->field[9]->store((longlong) file->data_file_length);
    if (file->max_data_file_length)
    {
      table->field[10]->store((longlong) file->max_data_file_length);
    }
    table->field[11]->store((longlong) file->index_file_length);
    table->field[12]->store((longlong) file->delete_length);
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    if (show_table->found_next_number_field)
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    {
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      table->field[13]->store((longlong) file->auto_increment_value);
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      table->field[13]->set_notnull();
    }
    if (file->create_time)
    {
      thd->variables.time_zone->gmt_sec_to_TIME(&time,
                                                file->create_time);
      table->field[14]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
      table->field[14]->set_notnull();
    }
    if (file->update_time)
    {
      thd->variables.time_zone->gmt_sec_to_TIME(&time,
                                                file->update_time);
      table->field[15]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
      table->field[15]->set_notnull();
    }
    if (file->check_time)
    {
      thd->variables.time_zone->gmt_sec_to_TIME(&time, file->check_time);
      table->field[16]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
      table->field[16]->set_notnull();
    }
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    tmp_buff= (share->table_charset ?
               share->table_charset->name : "default");
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    table->field[17]->store(tmp_buff, strlen(tmp_buff), cs);
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    if (file->table_flags() & (ulong) HA_HAS_CHECKSUM)
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    {
      table->field[18]->store((longlong) file->checksum());
      table->field[18]->set_notnull();
    }

    char option_buff[350],*ptr;
    ptr=option_buff;
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    if (share->min_rows)
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    {
      ptr=strmov(ptr," min_rows=");
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      ptr=longlong10_to_str(share->min_rows,ptr,10);
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    }
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    if (share->max_rows)
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    {
      ptr=strmov(ptr," max_rows=");
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      ptr=longlong10_to_str(share->max_rows,ptr,10);
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    }
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    if (share->avg_row_length)
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    {
      ptr=strmov(ptr," avg_row_length=");
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      ptr=longlong10_to_str(share->avg_row_length,ptr,10);
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    }
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    if (share->db_create_options & HA_OPTION_PACK_KEYS)
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      ptr=strmov(ptr," pack_keys=1");
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    if (share->db_create_options & HA_OPTION_NO_PACK_KEYS)
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      ptr=strmov(ptr," pack_keys=0");
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    if (share->db_create_options & HA_OPTION_CHECKSUM)
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      ptr=strmov(ptr," checksum=1");
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    if (share->db_create_options & HA_OPTION_DELAY_KEY_WRITE)
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      ptr=strmov(ptr," delay_key_write=1");
2337
    if (share->row_type != ROW_TYPE_DEFAULT)
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      ptr=strxmov(ptr, " row_format=", 
2339
                  ha_row_type[(uint) share->row_type],
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                  NullS);
    if (file->raid_type)
    {
      char buff[100];
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      my_snprintf(buff,sizeof(buff),
                  " raid_type=%s raid_chunks=%d raid_chunksize=%ld",
                  my_raid_type(file->raid_type), file->raid_chunks,
                  file->raid_chunksize/RAID_BLOCK_SIZE);
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      ptr=strmov(ptr,buff);
    }
    table->field[19]->store(option_buff+1,
                            (ptr == option_buff ? 0 : 
                             (uint) (ptr-option_buff)-1), cs);
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    {
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      char *comment;
      comment= show_table->file->update_table_comment(share->comment);
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      if (comment)
      {
        table->field[20]->store(comment, strlen(comment), cs);
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        if (comment != share->comment)
          my_free(comment, MYF(0));
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      }
    }
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  }
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  DBUG_RETURN(schema_table_store_record(thd, table));
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}


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static int get_schema_column_record(THD *thd, struct st_table_list *tables,
				    TABLE *table, bool res,
				    const char *base_name,
				    const char *file_name)
2372
{
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  LEX *lex= thd->lex;
  const char *wild= lex->wild ? lex->wild->ptr() : NullS;
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  CHARSET_INFO *cs= system_charset_info;
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  TABLE *show_table;
  handler *file;
  Field **ptr,*field;
  int count;
  uint base_name_length, file_name_length;
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  DBUG_ENTER("get_schema_column_record");
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  if (res)
  {
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    if (lex->orig_sql_command != SQLCOM_SHOW_FIELDS)
    {
      /*
        I.e. we are in SELECT FROM INFORMATION_SCHEMA.COLUMS
        rather than in SHOW COLUMNS
      */ 
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
                   thd->net.last_errno, thd->net.last_error);
      thd->clear_error();
      res= 0;
    }
    DBUG_RETURN(res);
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  }

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  show_table= tables->table;
  file= show_table->file;
  count= 0;
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  file->info(HA_STATUS_VARIABLE | HA_STATUS_NO_LOCK);
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  restore_record(show_table, s->default_values);
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  base_name_length= strlen(base_name);
  file_name_length= strlen(file_name);

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  for (ptr=show_table->field; (field= *ptr) ; ptr++)
  {
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    const char *tmp_buff;
    byte *pos;
    bool is_blob;
    uint flags=field->flags;
    char tmp[MAX_FIELD_WIDTH];
    char tmp1[MAX_FIELD_WIDTH];
    String type(tmp,sizeof(tmp), system_charset_info);
    char *end;
    int decimals, field_length;

    if (wild && wild[0] &&
        wild_case_compare(system_charset_info, field->field_name,wild))
      continue;

    flags= field->flags;
    count++;
    /* Get default row, with all NULL fields set to NULL */
    restore_record(table, s->default_values);
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#ifndef NO_EMBEDDED_ACCESS_CHECKS
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    uint col_access;
    check_access(thd,SELECT_ACL | EXTRA_ACL, base_name,
                 &tables->grant.privilege, 0, 0);
    col_access= get_column_grant(thd, &tables->grant, 
                                 base_name, file_name,
                                 field->field_name) & COL_ACLS;
    if (lex->orig_sql_command != SQLCOM_SHOW_FIELDS  && 
        !tables->schema_table && !col_access)
      continue;
    end= tmp;
    for (uint bitnr=0; col_access ; col_access>>=1,bitnr++)
    {
      if (col_access & 1)
2442
      {
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        *end++=',';
        end=strmov(end,grant_types.type_names[bitnr]);
2445
      }
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    }
    if (tables->schema_table)      // any user has 'select' privilege on all 
      // I_S table columns
      table->field[17]->store(grant_types.type_names[0],
                              strlen(grant_types.type_names[0]), cs);
    else
      table->field[17]->store(tmp+1,end == tmp ? 0 : (uint) (end-tmp-1), cs);
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#endif
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    table->field[1]->store(base_name, base_name_length, cs);
    table->field[2]->store(file_name, file_name_length, cs);
    table->field[3]->store(field->field_name, strlen(field->field_name),
                           cs);
    table->field[4]->store((longlong) count);
    field->sql_type(type);
    table->field[14]->store(type.ptr(), type.length(), cs);		
    tmp_buff= strchr(type.ptr(), '(');
    table->field[7]->store(type.ptr(),
                           (tmp_buff ? tmp_buff - type.ptr() :
                            type.length()), cs);
    if (show_table->timestamp_field == field &&
        field->unireg_check != Field::TIMESTAMP_UN_FIELD)
    {
      table->field[5]->store("CURRENT_TIMESTAMP", 17, cs);
      table->field[5]->set_notnull();
    }
    else if (field->unireg_check != Field::NEXT_NUMBER &&
             !field->is_null() &&
             !(field->flags & NO_DEFAULT_VALUE_FLAG))
    {
      String def(tmp1,sizeof(tmp1), cs);
      type.set(tmp, sizeof(tmp), field->charset());
      field->val_str(&type);
      uint dummy_errors;
      def.copy(type.ptr(), type.length(), type.charset(), cs, &dummy_errors);
      table->field[5]->store(def.ptr(), def.length(), def.charset());
      table->field[5]->set_notnull();
    }
    else if (field->unireg_check == Field::NEXT_NUMBER ||
             lex->orig_sql_command != SQLCOM_SHOW_FIELDS ||
             field->maybe_null())
      table->field[5]->set_null();                // Null as default
    else
    {
      table->field[5]->store("",0, cs);
      table->field[5]->set_notnull();
    }
    pos=(byte*) ((flags & NOT_NULL_FLAG) &&
                 field->type() != FIELD_TYPE_TIMESTAMP ?
                 "NO" : "YES");
    table->field[6]->store((const char*) pos,
                           strlen((const char*) pos), cs);
    is_blob= (field->type() == FIELD_TYPE_BLOB);
    if (field->has_charset() || is_blob)
    {
      longlong c_octet_len= is_blob ? (longlong) field->max_length() :
        (longlong) field->max_length()/field->charset()->mbmaxlen;
      table->field[8]->store(c_octet_len);
      table->field[8]->set_notnull();
      table->field[9]->store((longlong) field->max_length());
      table->field[9]->set_notnull();
    }
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2509 2510 2511 2512
    /*
      Calculate field_length and decimals.
      They are set to -1 if they should not be set (we should return NULL)
    */
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    decimals= field->decimals();
    switch (field->type()) {
    case FIELD_TYPE_NEWDECIMAL:
      field_length= ((Field_new_decimal*) field)->precision;
      break;
    case FIELD_TYPE_DECIMAL:
      field_length= field->field_length - (decimals  ? 2 : 1);
      break;
    case FIELD_TYPE_TINY:
    case FIELD_TYPE_SHORT:
    case FIELD_TYPE_LONG:
    case FIELD_TYPE_LONGLONG:
    case FIELD_TYPE_INT24:
      field_length= field->max_length() - 1;
      break;
    case FIELD_TYPE_BIT:
      field_length= field->max_length();
      decimals= -1;                             // return NULL
      break;
    case FIELD_TYPE_FLOAT:  
    case FIELD_TYPE_DOUBLE:
      field_length= field->field_length;
      if (decimals == NOT_FIXED_DEC)
        decimals= -1;                           // return NULL
    break;
    default:
      field_length= decimals= -1;
      break;
    }

    if (field_length >= 0)
    {
      table->field[10]->store((longlong) field_length);
      table->field[10]->set_notnull();
2548
    }
2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579
    if (decimals >= 0)
    {
      table->field[11]->store((longlong) decimals);
      table->field[11]->set_notnull();
    }

    if (field->has_charset())
    {
      pos=(byte*) field->charset()->csname;
      table->field[12]->store((const char*) pos,
                              strlen((const char*) pos), cs);
      table->field[12]->set_notnull();
      pos=(byte*) field->charset()->name;
      table->field[13]->store((const char*) pos,
                              strlen((const char*) pos), cs);
      table->field[13]->set_notnull();
    }
    pos=(byte*) ((field->flags & PRI_KEY_FLAG) ? "PRI" :
                 (field->flags & UNIQUE_KEY_FLAG) ? "UNI" :
                 (field->flags & MULTIPLE_KEY_FLAG) ? "MUL":"");
    table->field[15]->store((const char*) pos,
                            strlen((const char*) pos), cs);

    end= tmp;
    if (field->unireg_check == Field::NEXT_NUMBER)
      end=strmov(tmp,"auto_increment");
    table->field[16]->store(tmp, (uint) (end-tmp), cs);

    table->field[18]->store(field->comment.str, field->comment.length, cs);
    if (schema_table_store_record(thd, table))
      DBUG_RETURN(1);
2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591
  }
  DBUG_RETURN(0);
}



int fill_schema_charsets(THD *thd, TABLE_LIST *tables, COND *cond)
{
  CHARSET_INFO **cs;
  const char *wild= thd->lex->wild ? thd->lex->wild->ptr() : NullS;
  TABLE *table= tables->table;
  CHARSET_INFO *scs= system_charset_info;
2592 2593

  for (cs= all_charsets ; cs < all_charsets+255 ; cs++)
2594 2595 2596 2597 2598 2599 2600
  {
    CHARSET_INFO *tmp_cs= cs[0];
    if (tmp_cs && (tmp_cs->state & MY_CS_PRIMARY) && 
        (tmp_cs->state & MY_CS_AVAILABLE) &&
        !(wild && wild[0] &&
	  wild_case_compare(scs, tmp_cs->csname,wild)))
    {
2601
      const char *comment;
2602
      restore_record(table, s->default_values);
2603
      table->field[0]->store(tmp_cs->csname, strlen(tmp_cs->csname), scs);
2604
      table->field[1]->store(tmp_cs->name, strlen(tmp_cs->name), scs);
2605 2606
      comment= tmp_cs->comment ? tmp_cs->comment : "";
      table->field[2]->store(comment, strlen(comment), scs);
2607
      table->field[3]->store((longlong) tmp_cs->mbmaxlen);
2608 2609
      if (schema_table_store_record(thd, table))
        return 1;
2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621
    }
  }
  return 0;
}


int fill_schema_collation(THD *thd, TABLE_LIST *tables, COND *cond)
{
  CHARSET_INFO **cs;
  const char *wild= thd->lex->wild ? thd->lex->wild->ptr() : NullS;
  TABLE *table= tables->table;
  CHARSET_INFO *scs= system_charset_info;
2622
  for (cs= all_charsets ; cs < all_charsets+255 ; cs++ )
2623 2624 2625 2626 2627 2628
  {
    CHARSET_INFO **cl;
    CHARSET_INFO *tmp_cs= cs[0];
    if (!tmp_cs || !(tmp_cs->state & MY_CS_AVAILABLE) || 
        !(tmp_cs->state & MY_CS_PRIMARY))
      continue;
2629
    for (cl= all_charsets; cl < all_charsets+255 ;cl ++)
2630 2631 2632 2633 2634 2635 2636 2637 2638
    {
      CHARSET_INFO *tmp_cl= cl[0];
      if (!tmp_cl || !(tmp_cl->state & MY_CS_AVAILABLE) || 
          !my_charset_same(tmp_cs, tmp_cl))
	continue;
      if (!(wild && wild[0] &&
	  wild_case_compare(scs, tmp_cl->name,wild)))
      {
	const char *tmp_buff;
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	restore_record(table, s->default_values);
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	table->field[0]->store(tmp_cl->name, strlen(tmp_cl->name), scs);
        table->field[1]->store(tmp_cl->csname , strlen(tmp_cl->csname), scs);
        table->field[2]->store((longlong) tmp_cl->number);
        tmp_buff= (tmp_cl->state & MY_CS_PRIMARY) ? "Yes" : "";
	table->field[3]->store(tmp_buff, strlen(tmp_buff), scs);
        tmp_buff= (tmp_cl->state & MY_CS_COMPILED)? "Yes" : "";
	table->field[4]->store(tmp_buff, strlen(tmp_buff), scs);
        table->field[5]->store((longlong) tmp_cl->strxfrm_multiply);
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        if (schema_table_store_record(thd, table))
          return 1;
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      }
    }
  }
  return 0;
}


int fill_schema_coll_charset_app(THD *thd, TABLE_LIST *tables, COND *cond)
{
  CHARSET_INFO **cs;
  TABLE *table= tables->table;
  CHARSET_INFO *scs= system_charset_info;
2662
  for (cs= all_charsets ; cs < all_charsets+255 ; cs++ )
2663 2664 2665 2666 2667 2668
  {
    CHARSET_INFO **cl;
    CHARSET_INFO *tmp_cs= cs[0];
    if (!tmp_cs || !(tmp_cs->state & MY_CS_AVAILABLE) || 
        !(tmp_cs->state & MY_CS_PRIMARY))
      continue;
2669
    for (cl= all_charsets; cl < all_charsets+255 ;cl ++)
2670 2671 2672 2673 2674
    {
      CHARSET_INFO *tmp_cl= cl[0];
      if (!tmp_cl || !(tmp_cl->state & MY_CS_AVAILABLE) || 
          !my_charset_same(tmp_cs,tmp_cl))
	continue;
2675
      restore_record(table, s->default_values);
2676 2677
      table->field[0]->store(tmp_cl->name, strlen(tmp_cl->name), scs);
      table->field[1]->store(tmp_cl->csname , strlen(tmp_cl->csname), scs);
2678 2679
      if (schema_table_store_record(thd, table))
        return 1;
2680 2681 2682 2683 2684 2685
    }
  }
  return 0;
}


2686
bool store_schema_proc(THD *thd, TABLE *table, TABLE *proc_table,
2687
                       const char *wild, bool full_access, const char *sp_user)
2688 2689 2690 2691 2692
{
  String tmp_string;
  TIME time;
  LEX *lex= thd->lex;
  CHARSET_INFO *cs= system_charset_info;
2693 2694 2695 2696 2697 2698
  const char *sp_db, *sp_name, *definer;
  sp_db= get_field(thd->mem_root, proc_table->field[0]);
  sp_name= get_field(thd->mem_root, proc_table->field[1]);
  definer= get_field(thd->mem_root, proc_table->field[11]);
  if (!full_access)
    full_access= !strcmp(sp_user, definer);
2699 2700
  if (!full_access && check_some_routine_access(thd, sp_db, sp_name,
			proc_table->field[2]->val_int() == TYPE_ENUM_PROCEDURE))
2701
    return 0;
2702

2703 2704 2705 2706 2707 2708
  if (lex->orig_sql_command == SQLCOM_SHOW_STATUS_PROC &&
      proc_table->field[2]->val_int() == TYPE_ENUM_PROCEDURE ||
      lex->orig_sql_command == SQLCOM_SHOW_STATUS_FUNC &&
      proc_table->field[2]->val_int() == TYPE_ENUM_FUNCTION ||
      lex->orig_sql_command == SQLCOM_END)
  {
2709 2710
    restore_record(table, s->default_values);
    if (!wild || !wild[0] || !wild_compare(sp_name, wild, 0))
2711
    {
2712
      int enum_idx= proc_table->field[5]->val_int();
2713
      table->field[3]->store(sp_name, strlen(sp_name), cs);
2714 2715
      get_field(thd->mem_root, proc_table->field[3], &tmp_string);
      table->field[0]->store(tmp_string.ptr(), tmp_string.length(), cs);
2716
      table->field[2]->store(sp_db, strlen(sp_db), cs);
2717 2718
      get_field(thd->mem_root, proc_table->field[2], &tmp_string);
      table->field[4]->store(tmp_string.ptr(), tmp_string.length(), cs);
2719 2720 2721 2722 2723 2724
      if (proc_table->field[2]->val_int() == TYPE_ENUM_FUNCTION)
      {
        get_field(thd->mem_root, proc_table->field[9], &tmp_string);
        table->field[5]->store(tmp_string.ptr(), tmp_string.length(), cs);
        table->field[5]->set_notnull();
      }
2725 2726 2727 2728 2729
      if (full_access)
      {
        get_field(thd->mem_root, proc_table->field[10], &tmp_string);
        table->field[7]->store(tmp_string.ptr(), tmp_string.length(), cs);
      }
2730
      table->field[6]->store("SQL", 3, cs);
2731
      table->field[10]->store("SQL", 3, cs);
2732
      get_field(thd->mem_root, proc_table->field[6], &tmp_string);
2733
      table->field[11]->store(tmp_string.ptr(), tmp_string.length(), cs);
2734 2735
      table->field[12]->store(sp_data_access_name[enum_idx].str, 
                              sp_data_access_name[enum_idx].length , cs);
2736 2737
      get_field(thd->mem_root, proc_table->field[7], &tmp_string);
      table->field[14]->store(tmp_string.ptr(), tmp_string.length(), cs);
2738 2739
      bzero((char *)&time, sizeof(time));
      ((Field_timestamp *) proc_table->field[12])->get_time(&time);
2740
      table->field[15]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
2741 2742
      bzero((char *)&time, sizeof(time));
      ((Field_timestamp *) proc_table->field[13])->get_time(&time);
2743
      table->field[16]->store_time(&time, MYSQL_TIMESTAMP_DATETIME);
2744
      get_field(thd->mem_root, proc_table->field[14], &tmp_string);
2745
      table->field[17]->store(tmp_string.ptr(), tmp_string.length(), cs);
2746
      get_field(thd->mem_root, proc_table->field[15], &tmp_string);
2747
      table->field[18]->store(tmp_string.ptr(), tmp_string.length(), cs);
2748
      table->field[19]->store(definer, strlen(definer), cs);
2749
      return schema_table_store_record(thd, table);
2750 2751
    }
  }
2752
  return 0;
2753 2754 2755 2756 2757 2758 2759 2760 2761
}


int fill_schema_proc(THD *thd, TABLE_LIST *tables, COND *cond)
{
  TABLE *proc_table;
  TABLE_LIST proc_tables;
  const char *wild= thd->lex->wild ? thd->lex->wild->ptr() : NullS;
  int res= 0;
2762
  TABLE *table= tables->table;
2763 2764
  bool full_access;
  char definer[HOSTNAME_LENGTH+USERNAME_LENGTH+2];
2765
  Open_tables_state open_tables_state_backup;
2766 2767
  DBUG_ENTER("fill_schema_proc");

2768
  strxmov(definer, thd->priv_user, "@", thd->priv_host, NullS);
2769
  /* We use this TABLE_LIST instance only for checking of privileges. */
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  bzero((char*) &proc_tables,sizeof(proc_tables));
  proc_tables.db= (char*) "mysql";
2772
  proc_tables.db_length= 5;
2773
  proc_tables.table_name= proc_tables.alias= (char*) "proc";
2774
  proc_tables.table_name_length= 4;
2775
  proc_tables.lock_type= TL_READ;
2776
  full_access= !check_table_access(thd, SELECT_ACL, &proc_tables, 1);
2777
  if (!(proc_table= open_proc_table_for_read(thd, &open_tables_state_backup)))
2778 2779 2780 2781 2782 2783 2784 2785 2786
  {
    DBUG_RETURN(1);
  }
  proc_table->file->ha_index_init(0);
  if ((res= proc_table->file->index_first(proc_table->record[0])))
  {
    res= (res == HA_ERR_END_OF_FILE) ? 0 : 1;
    goto err;
  }
2787 2788 2789 2790 2791
  if (store_schema_proc(thd, table, proc_table, wild, full_access, definer))
  {
    res= 1;
    goto err;
  }
2792
  while (!proc_table->file->index_next(proc_table->record[0]))
2793 2794 2795 2796 2797 2798 2799
  {
    if (store_schema_proc(thd, table, proc_table, wild, full_access, definer))
    {
      res= 1;
      goto err;
    }
  }
2800 2801 2802

err:
  proc_table->file->ha_index_end();
2803
  close_proc_table(thd, &open_tables_state_backup);
2804 2805 2806 2807
  DBUG_RETURN(res);
}


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static int get_schema_stat_record(THD *thd, struct st_table_list *tables,
				  TABLE *table, bool res,
				  const char *base_name,
				  const char *file_name)
2812 2813 2814
{
  CHARSET_INFO *cs= system_charset_info;
  DBUG_ENTER("get_schema_stat_record");
2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831
  if (res)
  {
    if (thd->lex->orig_sql_command != SQLCOM_SHOW_KEYS)
    {
      /*
        I.e. we are in SELECT FROM INFORMATION_SCHEMA.STATISTICS
        rather than in SHOW KEYS
      */ 
      if (!tables->view)
        push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
                     thd->net.last_errno, thd->net.last_error);
      thd->clear_error();
      res= 0;
    }
    DBUG_RETURN(res);
  }
  else if (!tables->view)
2832 2833 2834 2835 2836 2837
  {
    TABLE *show_table= tables->table;
    KEY *key_info=show_table->key_info;
    show_table->file->info(HA_STATUS_VARIABLE | 
                           HA_STATUS_NO_LOCK |
                           HA_STATUS_TIME);
2838
    for (uint i=0 ; i < show_table->s->keys ; i++,key_info++)
2839 2840 2841 2842 2843
    {
      KEY_PART_INFO *key_part= key_info->key_part;
      const char *str;
      for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
      {
2844
        restore_record(table, s->default_values);
2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874
        table->field[1]->store(base_name, strlen(base_name), cs);
        table->field[2]->store(file_name, strlen(file_name), cs);
        table->field[3]->store((longlong) ((key_info->flags & 
                                            HA_NOSAME) ? 0 :1));
        table->field[4]->store(base_name, strlen(base_name), cs);
        table->field[5]->store(key_info->name, strlen(key_info->name), cs);
        table->field[6]->store((longlong) (j+1));
        str=(key_part->field ? key_part->field->field_name :
             "?unknown field?");
        table->field[7]->store(str, strlen(str), cs);
        if (show_table->file->index_flags(i, j, 0) & HA_READ_ORDER)
        {
          table->field[8]->store(((key_part->key_part_flag &
                                   HA_REVERSE_SORT) ?
                                  "D" : "A"), 1, cs);
          table->field[8]->set_notnull();
        }
        KEY *key=show_table->key_info+i;
        if (key->rec_per_key[j])
        {
          ha_rows records=(show_table->file->records /
                           key->rec_per_key[j]);
          table->field[9]->store((longlong) records);
          table->field[9]->set_notnull();
        }
        if (!(key_info->flags & HA_FULLTEXT) && 
            (!key_part->field ||
             key_part->length != 
             show_table->field[key_part->fieldnr-1]->key_length()))
        {
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          table->field[10]->store((longlong) key_part->length / 
                                  key_part->field->charset()->mbmaxlen);
2877 2878 2879 2880 2881 2882 2883
          table->field[10]->set_notnull();
        }
        uint flags= key_part->field ? key_part->field->flags : 0;
        const char *pos=(char*) ((flags & NOT_NULL_FLAG) ? "" : "YES");
        table->field[12]->store(pos, strlen(pos), cs);
        pos= show_table->file->index_type(i);
        table->field[13]->store(pos, strlen(pos), cs);
2884
        if (!show_table->s->keys_in_use.is_set(i))
2885 2886 2887 2888
          table->field[14]->store("disabled", 8, cs);
        else
          table->field[14]->store("", 0, cs);
        table->field[14]->set_notnull();
2889 2890
        if (schema_table_store_record(thd, table))
          DBUG_RETURN(1);
2891 2892 2893
      }
    }
  }
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  DBUG_RETURN(res);
2895 2896 2897
}


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2898 2899 2900 2901
static int get_schema_views_record(THD *thd, struct st_table_list *tables,
				   TABLE *table, bool res,
				   const char *base_name,
				   const char *file_name)
2902 2903 2904 2905 2906 2907 2908
{
  CHARSET_INFO *cs= system_charset_info;
  DBUG_ENTER("get_schema_views_record");
  if (!res)
  {
    if (tables->view)
    {
2909
      restore_record(table, s->default_values);
2910
      table->field[1]->store(tables->view_db.str, tables->view_db.length, cs);
2911 2912
      table->field[2]->store(tables->view_name.str, tables->view_name.length,
                             cs);
2913
      table->field[3]->store(tables->query.str, tables->query.length, cs);
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2914 2915 2916 2917

      if (tables->with_check != VIEW_CHECK_NONE)
      {
        if (tables->with_check == VIEW_CHECK_LOCAL)
2918
          table->field[4]->store("LOCAL", 5, cs);
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2919
        else
2920
          table->field[4]->store("CASCADED", 8, cs);
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      }
      else
        table->field[4]->store("NONE", 4, cs);

2925 2926 2927 2928
      if (tables->updatable_view)
        table->field[5]->store("YES", 3, cs);
      else
        table->field[5]->store("NO", 2, cs);
2929
      DBUG_RETURN(schema_table_store_record(thd, table));
2930 2931
    }
  }
2932 2933 2934 2935 2936 2937 2938 2939
  else
  {
    if (tables->view)
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, 
                   thd->net.last_errno, thd->net.last_error);
    thd->clear_error();
  }
  DBUG_RETURN(0);
2940 2941 2942
}


2943 2944 2945
bool store_constraints(THD *thd, TABLE *table, const char *db,
                       const char *tname, const char *key_name,
                       uint key_len, const char *con_type, uint con_len)
2946 2947
{
  CHARSET_INFO *cs= system_charset_info;
2948
  restore_record(table, s->default_values);
2949 2950 2951 2952 2953
  table->field[1]->store(db, strlen(db), cs);
  table->field[2]->store(key_name, key_len, cs);
  table->field[3]->store(db, strlen(db), cs);
  table->field[4]->store(tname, strlen(tname), cs);
  table->field[5]->store(con_type, con_len, cs);
2954
  return schema_table_store_record(thd, table);
2955 2956 2957
}


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2958
static int get_schema_constraints_record(THD *thd, struct st_table_list *tables,
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2959 2960 2961
					 TABLE *table, bool res,
					 const char *base_name,
					 const char *file_name)
2962
{
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2963
  DBUG_ENTER("get_schema_constraints_record");
2964 2965 2966 2967 2968 2969 2970 2971 2972
  if (res)
  {
    if (!tables->view)
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
                   thd->net.last_errno, thd->net.last_error);
    thd->clear_error();
    DBUG_RETURN(0);
  }
  else if (!tables->view)
2973 2974 2975 2976
  {
    List<FOREIGN_KEY_INFO> f_key_list;
    TABLE *show_table= tables->table;
    KEY *key_info=show_table->key_info;
2977
    uint primary_key= show_table->s->primary_key;
2978 2979 2980
    show_table->file->info(HA_STATUS_VARIABLE | 
                           HA_STATUS_NO_LOCK |
                           HA_STATUS_TIME);
2981
    for (uint i=0 ; i < show_table->s->keys ; i++, key_info++)
2982 2983
    {
      if (i != primary_key && !(key_info->flags & HA_NOSAME))
2984 2985
        continue;

2986
      if (i == primary_key && !strcmp(key_info->name, primary_key_name))
2987 2988 2989 2990 2991
      {
        if (store_constraints(thd, table, base_name, file_name, key_info->name,
                              strlen(key_info->name), "PRIMARY KEY", 11))
          DBUG_RETURN(1);
      }
2992
      else if (key_info->flags & HA_NOSAME)
2993 2994 2995 2996 2997
      {
        if (store_constraints(thd, table, base_name, file_name, key_info->name,
                              strlen(key_info->name), "UNIQUE", 6))
          DBUG_RETURN(1);
      }
2998 2999 3000 3001 3002 3003 3004
    }

    show_table->file->get_foreign_key_list(thd, &f_key_list);
    FOREIGN_KEY_INFO *f_key_info;
    List_iterator_fast<FOREIGN_KEY_INFO> it(f_key_list);
    while ((f_key_info=it++))
    {
3005 3006 3007 3008 3009
      if (store_constraints(thd, table, base_name, file_name, 
                            f_key_info->forein_id->str,
                            strlen(f_key_info->forein_id->str),
                            "FOREIGN KEY", 11))
        DBUG_RETURN(1);
3010 3011
    }
  }
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  DBUG_RETURN(res);
3013 3014 3015
}


3016 3017 3018 3019
static bool store_trigger(THD *thd, TABLE *table, const char *db,
                          const char *tname, LEX_STRING *trigger_name,
                          enum trg_event_type event,
                          enum trg_action_time_type timing,
3020 3021
                          LEX_STRING *trigger_stmt,
                          ulong sql_mode)
3022 3023
{
  CHARSET_INFO *cs= system_charset_info;
3024 3025 3026
  byte *sql_mode_str;
  ulong sql_mode_len;

3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039
  restore_record(table, s->default_values);
  table->field[1]->store(db, strlen(db), cs);
  table->field[2]->store(trigger_name->str, trigger_name->length, cs);
  table->field[3]->store(trg_event_type_names[event].str,
                         trg_event_type_names[event].length, cs);
  table->field[5]->store(db, strlen(db), cs);
  table->field[6]->store(tname, strlen(tname), cs);
  table->field[9]->store(trigger_stmt->str, trigger_stmt->length, cs);
  table->field[10]->store("ROW", 3, cs);
  table->field[11]->store(trg_action_time_type_names[timing].str,
                          trg_action_time_type_names[timing].length, cs);
  table->field[14]->store("OLD", 3, cs);
  table->field[15]->store("NEW", 3, cs);
3040 3041 3042 3043 3044

  sql_mode_str=
    sys_var_thd_sql_mode::symbolic_mode_representation(thd,
                                                       sql_mode,
                                                       &sql_mode_len);
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  table->field[17]->store((const char*)sql_mode_str, sql_mode_len, cs);
3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077
  return schema_table_store_record(thd, table);
}


static int get_schema_triggers_record(THD *thd, struct st_table_list *tables,
				      TABLE *table, bool res,
				      const char *base_name,
				      const char *file_name)
{
  DBUG_ENTER("get_schema_triggers_record");
  /*
    res can be non zero value when processed table is a view or
    error happened during opening of processed table.
  */
  if (res)
  {
    if (!tables->view)
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
                   thd->net.last_errno, thd->net.last_error);
    thd->clear_error();
    DBUG_RETURN(0);
  }
  if (!tables->view && tables->table->triggers)
  {
    Table_triggers_list *triggers= tables->table->triggers;
    int event, timing;
    for (event= 0; event < (int)TRG_EVENT_MAX; event++)
    {
      for (timing= 0; timing < (int)TRG_ACTION_MAX; timing++)
      {
        LEX_STRING trigger_name;
        LEX_STRING trigger_stmt;
3078
        ulong sql_mode;
3079 3080
        if (triggers->get_trigger_info(thd, (enum trg_event_type) event,
                                       (enum trg_action_time_type)timing,
3081 3082
                                       &trigger_name, &trigger_stmt,
                                       &sql_mode))
3083 3084 3085
          continue;
        if (store_trigger(thd, table, base_name, file_name, &trigger_name,
                         (enum trg_event_type) event,
3086 3087
                         (enum trg_action_time_type) timing, &trigger_stmt,
                         sql_mode))
3088 3089 3090 3091 3092 3093 3094 3095
          DBUG_RETURN(1);
      }
    }
  }
  DBUG_RETURN(0);
}


3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109
void store_key_column_usage(TABLE *table, const char*db, const char *tname,
                            const char *key_name, uint key_len, 
                            const char *con_type, uint con_len, longlong idx)
{
  CHARSET_INFO *cs= system_charset_info;
  table->field[1]->store(db, strlen(db), cs);
  table->field[2]->store(key_name, key_len, cs);
  table->field[4]->store(db, strlen(db), cs);
  table->field[5]->store(tname, strlen(tname), cs);
  table->field[6]->store(con_type, con_len, cs);
  table->field[7]->store((longlong) idx);
}


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3110 3111 3112 3113 3114
static int get_schema_key_column_usage_record(THD *thd,
					      struct st_table_list *tables,
					      TABLE *table, bool res,
					      const char *base_name,
					      const char *file_name)
3115 3116
{
  DBUG_ENTER("get_schema_key_column_usage_record");
3117 3118 3119 3120 3121 3122 3123 3124 3125
  if (res)
  {
    if (!tables->view)
      push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
                   thd->net.last_errno, thd->net.last_error);
    thd->clear_error();
    DBUG_RETURN(0);
  }
  else if (!tables->view)
3126 3127 3128 3129
  {
    List<FOREIGN_KEY_INFO> f_key_list;
    TABLE *show_table= tables->table;
    KEY *key_info=show_table->key_info;
3130
    uint primary_key= show_table->s->primary_key;
3131 3132 3133
    show_table->file->info(HA_STATUS_VARIABLE | 
                           HA_STATUS_NO_LOCK |
                           HA_STATUS_TIME);
3134
    for (uint i=0 ; i < show_table->s->keys ; i++, key_info++)
3135 3136
    {
      if (i != primary_key && !(key_info->flags & HA_NOSAME))
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        continue;
3138 3139 3140 3141 3142 3143 3144
      uint f_idx= 0;
      KEY_PART_INFO *key_part= key_info->key_part;
      for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
      {
        if (key_part->field)
        {
          f_idx++;
3145
          restore_record(table, s->default_values);
3146 3147 3148 3149 3150 3151
          store_key_column_usage(table, base_name, file_name,
                                 key_info->name,
                                 strlen(key_info->name), 
                                 key_part->field->field_name, 
                                 strlen(key_part->field->field_name),
                                 (longlong) f_idx);
3152 3153
          if (schema_table_store_record(thd, table))
            DBUG_RETURN(1);
3154 3155 3156 3157 3158 3159 3160 3161 3162
        }
      }
    }

    show_table->file->get_foreign_key_list(thd, &f_key_list);
    FOREIGN_KEY_INFO *f_key_info;
    List_iterator_fast<FOREIGN_KEY_INFO> it(f_key_list);
    while ((f_key_info= it++))
    {
3163
      LEX_STRING *f_info;
3164
      LEX_STRING *r_info;
3165 3166 3167 3168 3169
      List_iterator_fast<LEX_STRING> it(f_key_info->foreign_fields),
        it1(f_key_info->referenced_fields);
      uint f_idx= 0;
      while ((f_info= it++))
      {
3170
        r_info= it1++;
3171
        f_idx++;
3172
        restore_record(table, s->default_values);
3173 3174 3175 3176 3177 3178 3179
        store_key_column_usage(table, base_name, file_name,
                               f_key_info->forein_id->str,
                               f_key_info->forein_id->length,
                               f_info->str, f_info->length,
                               (longlong) f_idx);
        table->field[8]->store((longlong) f_idx);
        table->field[8]->set_notnull();
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        table->field[9]->store(f_key_info->referenced_db->str,
                               f_key_info->referenced_db->length,
                               system_charset_info);
        table->field[9]->set_notnull();
        table->field[10]->store(f_key_info->referenced_table->str,
                                f_key_info->referenced_table->length, 
                                system_charset_info);
        table->field[10]->set_notnull();
        table->field[11]->store(r_info->str, r_info->length,
                                system_charset_info);
        table->field[11]->set_notnull();
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        if (schema_table_store_record(thd, table))
          DBUG_RETURN(1);
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      }
    }
  }
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  DBUG_RETURN(res);
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}


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int fill_open_tables(THD *thd, TABLE_LIST *tables, COND *cond)
{
  DBUG_ENTER("fill_open_tables");
  const char *wild= thd->lex->wild ? thd->lex->wild->ptr() : NullS;
  TABLE *table= tables->table;
  CHARSET_INFO *cs= system_charset_info;
  OPEN_TABLE_LIST *open_list;
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  if (!(open_list=list_open_tables(thd,thd->lex->select_lex.db, wild))
            && thd->is_fatal_error)
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    DBUG_RETURN(1);

  for (; open_list ; open_list=open_list->next)
  {
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    restore_record(table, s->default_values);
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    table->field[0]->store(open_list->db, strlen(open_list->db), cs);
    table->field[1]->store(open_list->table, strlen(open_list->table), cs);
    table->field[2]->store((longlong) open_list->in_use);
    table->field[3]->store((longlong)  open_list->locked);
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    if (schema_table_store_record(thd, table))
      DBUG_RETURN(1);
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  }
  DBUG_RETURN(0);
}


int fill_variables(THD *thd, TABLE_LIST *tables, COND *cond)
{
  DBUG_ENTER("fill_variables");
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  int res= 0;
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  LEX *lex= thd->lex;
  const char *wild= lex->wild ? lex->wild->ptr() : NullS;
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  pthread_mutex_lock(&LOCK_global_system_variables);
  res= show_status_array(thd, wild, init_vars, 
                         lex->option_type, 0, "", tables->table);
  pthread_mutex_unlock(&LOCK_global_system_variables);
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  DBUG_RETURN(res);
}


int fill_status(THD *thd, TABLE_LIST *tables, COND *cond)
{
  DBUG_ENTER("fill_status");
  LEX *lex= thd->lex;
  const char *wild= lex->wild ? lex->wild->ptr() : NullS;
  int res= 0;
  STATUS_VAR tmp;
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  ha_update_statistics();                    /* Export engines statistics */
  pthread_mutex_lock(&LOCK_status);
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  if (lex->option_type == OPT_GLOBAL)
    calc_sum_of_all_status(&tmp);
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  res= show_status_array(thd, wild, status_vars, OPT_GLOBAL,
                         (lex->option_type == OPT_GLOBAL ? 
                          &tmp: &thd->status_var), "",tables->table);
  pthread_mutex_unlock(&LOCK_status);
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  DBUG_RETURN(res);
}


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/*
  Find schema_tables elment by name

  SYNOPSIS
    find_schema_table()
    thd                 thread handler
    table_name          table name

  RETURN
    0	table not found
    #   pointer to 'shema_tables' element
*/

ST_SCHEMA_TABLE *find_schema_table(THD *thd, const char* table_name)
{
  ST_SCHEMA_TABLE *schema_table= schema_tables;
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  for (; schema_table->table_name; schema_table++)
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  {
    if (!my_strcasecmp(system_charset_info,
                       schema_table->table_name,
                       table_name))
      return schema_table;
  }
  return 0;
}


ST_SCHEMA_TABLE *get_schema_table(enum enum_schema_tables schema_table_idx)
{
  return &schema_tables[schema_table_idx];
}


/*
  Create information_schema table using schema_table data

  SYNOPSIS
    create_schema_table()
    thd	       	          thread handler
    schema_table          pointer to 'shema_tables' element

  RETURN
    #	                  Pointer to created table
    0	                  Can't create table
*/

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TABLE *create_schema_table(THD *thd, TABLE_LIST *table_list)
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{
  int field_count= 0;
  Item *item;
  TABLE *table;
  List<Item> field_list;
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  ST_SCHEMA_TABLE *schema_table= table_list->schema_table;
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  ST_FIELD_INFO *fields_info= schema_table->fields_info;
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  CHARSET_INFO *cs= system_charset_info;
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  DBUG_ENTER("create_schema_table");

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  for (; fields_info->field_name; fields_info++)
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  {
    switch (fields_info->field_type) {
    case MYSQL_TYPE_LONG:
      if (!(item= new Item_int(fields_info->field_name,
                               fields_info->value,
                               fields_info->field_length)))
      {
        DBUG_RETURN(0);
      }
      break;
    case MYSQL_TYPE_TIMESTAMP:
      if (!(item=new Item_datetime(fields_info->field_name)))
      {
        DBUG_RETURN(0);
      }
      break;
    default:
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      /* this should be changed when Item_empty_string is fixed(in 4.1) */
      if (!(item= new Item_empty_string("", 0, cs)))
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      {
        DBUG_RETURN(0);
      }
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      item->max_length= fields_info->field_length * cs->mbmaxlen;
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      item->set_name(fields_info->field_name,
                     strlen(fields_info->field_name), cs);
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      break;
    }
    field_list.push_back(item);
    item->maybe_null= fields_info->maybe_null;
    field_count++;
  }
  TMP_TABLE_PARAM *tmp_table_param =
    (TMP_TABLE_PARAM*) (thd->calloc(sizeof(TMP_TABLE_PARAM)));
  tmp_table_param->init();
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  tmp_table_param->table_charset= cs;
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  tmp_table_param->field_count= field_count;
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  tmp_table_param->schema_table= 1;
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  SELECT_LEX *select_lex= thd->lex->current_select;
  if (!(table= create_tmp_table(thd, tmp_table_param,
                                field_list, (ORDER*) 0, 0, 0, 
                                (select_lex->options | thd->options |
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                                 TMP_TABLE_ALL_COLUMNS),
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                                HA_POS_ERROR, table_list->alias)))
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    DBUG_RETURN(0);
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  table_list->schema_table_param= tmp_table_param;
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  DBUG_RETURN(table);
}


/*
  For old SHOW compatibility. It is used when
  old SHOW doesn't have generated column names
  Make list of fields for SHOW

  SYNOPSIS
    make_old_format()
    thd			thread handler
    schema_table        pointer to 'schema_tables' element

  RETURN
   -1	errror
    0	success
*/

int make_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
  ST_FIELD_INFO *field_info= schema_table->fields_info;
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  Name_resolution_context *context= &thd->lex->select_lex.context;
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  for (; field_info->field_name; field_info++)
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  {
    if (field_info->old_name)
    {
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      Item_field *field= new Item_field(context,
                                        NullS, NullS, field_info->field_name);
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      if (field)
      {
        field->set_name(field_info->old_name,
                        strlen(field_info->old_name),
                        system_charset_info);
        if (add_item_to_list(thd, field))
          return 1;
      }
    }
  }
  return 0;
}


int make_schemata_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
  char tmp[128];
  LEX *lex= thd->lex;
  SELECT_LEX *sel= lex->current_select;
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  Name_resolution_context *context= &sel->context;
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  if (!sel->item_list.elements)
  {
    ST_FIELD_INFO *field_info= &schema_table->fields_info[1];
    String buffer(tmp,sizeof(tmp), system_charset_info);
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    Item_field *field= new Item_field(context,
                                      NullS, NullS, field_info->field_name);
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    if (!field || add_item_to_list(thd, field))
      return 1;
    buffer.length(0);
    buffer.append(field_info->old_name);
    if (lex->wild && lex->wild->ptr())
    {
      buffer.append(" (");
      buffer.append(lex->wild->ptr());
      buffer.append(")");
    }
    field->set_name(buffer.ptr(), buffer.length(), system_charset_info);
  }
  return 0;
}


int make_table_names_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
  char tmp[128];
  String buffer(tmp,sizeof(tmp), thd->charset());
  LEX *lex= thd->lex;
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  Name_resolution_context *context= &lex->select_lex.context;
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  ST_FIELD_INFO *field_info= &schema_table->fields_info[2];
  buffer.length(0);
  buffer.append(field_info->old_name);
  buffer.append(lex->select_lex.db);
  if (lex->wild && lex->wild->ptr())
  {
    buffer.append(" (");
    buffer.append(lex->wild->ptr());
    buffer.append(")");
  }
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  Item_field *field= new Item_field(context,
                                    NullS, NullS, field_info->field_name);
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  if (add_item_to_list(thd, field))
    return 1;
  field->set_name(buffer.ptr(), buffer.length(), system_charset_info);
  if (thd->lex->verbose)
  {
    field->set_name(buffer.ptr(), buffer.length(), system_charset_info);
    field_info= &schema_table->fields_info[3];
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    field= new Item_field(context, NullS, NullS, field_info->field_name);
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    if (add_item_to_list(thd, field))
      return 1;
    field->set_name(field_info->old_name, strlen(field_info->old_name),
                    system_charset_info);
  }
  return 0;
}


int make_columns_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
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  int fields_arr[]= {3, 14, 13, 6, 15, 5, 16, 17, 18, -1};
  int *field_num= fields_arr;
  ST_FIELD_INFO *field_info;
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  Name_resolution_context *context= &thd->lex->select_lex.context;

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  for (; *field_num >= 0; field_num++)
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  {
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    field_info= &schema_table->fields_info[*field_num];
    if (!thd->lex->verbose && (*field_num == 13 ||
                               *field_num == 17 ||
                               *field_num == 18))
      continue;
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    Item_field *field= new Item_field(context,
                                      NullS, NullS, field_info->field_name);
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    if (field)
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    {
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      field->set_name(field_info->old_name,
                      strlen(field_info->old_name),
                      system_charset_info);
      if (add_item_to_list(thd, field))
        return 1;
    }
  }
  return 0;
}


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int make_character_sets_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
  int fields_arr[]= {0, 2, 1, 3, -1};
  int *field_num= fields_arr;
  ST_FIELD_INFO *field_info;
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  Name_resolution_context *context= &thd->lex->select_lex.context;

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  for (; *field_num >= 0; field_num++)
  {
    field_info= &schema_table->fields_info[*field_num];
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    Item_field *field= new Item_field(context,
                                      NullS, NullS, field_info->field_name);
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    if (field)
    {
      field->set_name(field_info->old_name,
                      strlen(field_info->old_name),
                      system_charset_info);
      if (add_item_to_list(thd, field))
        return 1;
    }
  }
  return 0;
}


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int make_proc_old_format(THD *thd, ST_SCHEMA_TABLE *schema_table)
{
  int fields_arr[]= {2, 3, 4, 19, 16, 15, 14, 18, -1};
  int *field_num= fields_arr;
  ST_FIELD_INFO *field_info;
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  Name_resolution_context *context= &thd->lex->select_lex.context;

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  for (; *field_num >= 0; field_num++)
  {
    field_info= &schema_table->fields_info[*field_num];
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    Item_field *field= new Item_field(context,
                                      NullS, NullS, field_info->field_name);
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    if (field)
    {
      field->set_name(field_info->old_name,
                      strlen(field_info->old_name),
                      system_charset_info);
      if (add_item_to_list(thd, field))
        return 1;
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    }
  }
  return 0;
}


/*
  Create information_schema table

  SYNOPSIS
  mysql_schema_table()
    thd                thread handler
    lex                pointer to LEX
    table_list         pointer to table_list

  RETURN
    0	success
    1   error
*/

int mysql_schema_table(THD *thd, LEX *lex, TABLE_LIST *table_list)
{
  TABLE *table;
  DBUG_ENTER("mysql_schema_table");
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  if (!(table= table_list->schema_table->create_table(thd, table_list)))
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  {
    DBUG_RETURN(1);
  }
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  table->s->tmp_table= SYSTEM_TMP_TABLE;
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  table->grant.privilege= SELECT_ACL;
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  /*
    This test is necessary to make
    case insensitive file systems +
    upper case table names(information schema tables) +
    views
    working correctly
  */
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  if (table_list->schema_table_name)
    table->alias_name_used= my_strcasecmp(table_alias_charset,
                                          table_list->schema_table_name,
                                          table_list->alias);
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  table_list->table_name= (char*) table->s->table_name;
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  table_list->table_name_length= strlen(table->s->table_name);
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  table_list->table= table;
  table->next= thd->derived_tables;
  thd->derived_tables= table;
  table_list->select_lex->options |= OPTION_SCHEMA_TABLE;
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  lex->safe_to_cache_query= 0;
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  if (table_list->schema_table_reformed) // show command
  {
    SELECT_LEX *sel= lex->current_select;
    Item *item;
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    Field_translator *transl, *org_transl;
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    if (table_list->field_translation)
    {
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      Field_translator *end= table_list->field_translation_end;
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      for (transl= table_list->field_translation; transl < end; transl++)
      {
        if (!transl->item->fixed &&
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            transl->item->fix_fields(thd, &transl->item))
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          DBUG_RETURN(1);
      }
      DBUG_RETURN(0);
    }
    List_iterator_fast<Item> it(sel->item_list);
    if (!(transl=
          (Field_translator*)(thd->current_arena->
                              alloc(sel->item_list.elements *
                                    sizeof(Field_translator)))))
    {
      DBUG_RETURN(1);
    }
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    for (org_transl= transl; (item= it++); transl++)
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    {
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      transl->item= item;
      transl->name= item->name;
      if (!item->fixed && item->fix_fields(thd, &transl->item))
      {
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        DBUG_RETURN(1);
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      }
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    }
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    table_list->field_translation= org_transl;
    table_list->field_translation_end= transl;
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  }

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  DBUG_RETURN(0);
}


/*
  Generate select from information_schema table

  SYNOPSIS
    make_schema_select()
    thd                  thread handler
    sel                  pointer to SELECT_LEX
    schema_table_idx     index of 'schema_tables' element

  RETURN
    0	success
    1   error
*/

int make_schema_select(THD *thd, SELECT_LEX *sel,
		       enum enum_schema_tables schema_table_idx)
{
  ST_SCHEMA_TABLE *schema_table= get_schema_table(schema_table_idx);
  LEX_STRING db, table;
  DBUG_ENTER("mysql_schema_select");
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  /*
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     We have to make non const db_name & table_name
     because of lower_case_table_names
  */
  make_lex_string(thd, &db, information_schema_name.str,
                  information_schema_name.length, 0);
  make_lex_string(thd, &table, schema_table->table_name,
                  strlen(schema_table->table_name), 0);
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  if (schema_table->old_format(thd, schema_table) ||   /* Handle old syntax */
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      !sel->add_table_to_list(thd, new Table_ident(thd, db, table, 0),
                              0, 0, TL_READ, (List<String> *) 0,
                              (List<String> *) 0))
  {
    DBUG_RETURN(1);
  }
  DBUG_RETURN(0);
}


/*
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  Fill temporary schema tables before SELECT
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  SYNOPSIS
    get_schema_tables_result()
    join  join which use schema tables

  RETURN
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    FALSE success
    TRUE  error
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*/

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bool get_schema_tables_result(JOIN *join)
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{
  JOIN_TAB *tmp_join_tab= join->join_tab+join->tables;
  THD *thd= join->thd;
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  LEX *lex= thd->lex;
  bool result= 0;
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  DBUG_ENTER("get_schema_tables_result");

  thd->no_warnings_for_error= 1;
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  for (JOIN_TAB *tab= join->join_tab; tab < tmp_join_tab; tab++)
  {  
    if (!tab->table || !tab->table->pos_in_table_list)
      break;
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    TABLE_LIST *table_list= tab->table->pos_in_table_list;
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    if (table_list->schema_table && thd->fill_derived_tables())
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    {
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      if (&lex->unit != lex->current_select->master_unit()) // is subselect
      {
        table_list->table->file->extra(HA_EXTRA_RESET_STATE);
        table_list->table->file->delete_all_rows();
        free_io_cache(table_list->table);
        filesort_free_buffers(table_list->table);
      }
      else
        table_list->table->file->records= 0;

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      if (table_list->schema_table->fill_table(thd, table_list,
                                               tab->select_cond))
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        result= 1;
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    }
  }
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  thd->no_warnings_for_error= 0;
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  DBUG_RETURN(result);
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}


ST_FIELD_INFO schema_fields_info[]=
{
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  {"CATALOG_NAME", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"SCHEMA_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Database"},
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  {"DEFAULT_CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"DEFAULT_COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"SQL_PATH", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO tables_fields_info[]=
{
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  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA",NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Name"},
  {"TABLE_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"ENGINE", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, "Engine"},
  {"VERSION", 21 , MYSQL_TYPE_LONG, 0, 1, "Version"},
  {"ROW_FORMAT", 10, MYSQL_TYPE_STRING, 0, 1, "Row_format"},
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  {"TABLE_ROWS", 21 , MYSQL_TYPE_LONG, 0, 1, "Rows"},
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  {"AVG_ROW_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, "Avg_row_length"},
  {"DATA_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, "Data_length"},
  {"MAX_DATA_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, "Max_data_length"},
  {"INDEX_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, "Index_length"},
  {"DATA_FREE", 21 , MYSQL_TYPE_LONG, 0, 1, "Data_free"},
  {"AUTO_INCREMENT", 21 , MYSQL_TYPE_LONG, 0, 1, "Auto_increment"},
  {"CREATE_TIME", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, "Create_time"},
  {"UPDATE_TIME", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, "Update_time"},
  {"CHECK_TIME", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, "Check_time"},
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  {"TABLE_COLLATION", 64, MYSQL_TYPE_STRING, 0, 1, "Collation"},
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  {"CHECKSUM", 21 , MYSQL_TYPE_LONG, 0, 1, "Checksum"},
  {"CREATE_OPTIONS", 255, MYSQL_TYPE_STRING, 0, 1, "Create_options"},
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  {"TABLE_COMMENT", 80, MYSQL_TYPE_STRING, 0, 0, "Comment"},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO columns_fields_info[]=
{
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  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Field"},
  {"ORDINAL_POSITION", 21 , MYSQL_TYPE_LONG, 0, 0, 0},
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  {"COLUMN_DEFAULT", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, "Default"},
  {"IS_NULLABLE", 3, MYSQL_TYPE_STRING, 0, 0, "Null"},
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  {"DATA_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"CHARACTER_MAXIMUM_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
  {"CHARACTER_OCTET_LENGTH", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
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  {"NUMERIC_PRECISION", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
  {"NUMERIC_SCALE", 21 , MYSQL_TYPE_LONG, 0, 1, 0},
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  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 1, 0},
  {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 1, "Collation"},
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  {"COLUMN_TYPE", 65535, MYSQL_TYPE_STRING, 0, 0, "Type"},
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  {"COLUMN_KEY", 3, MYSQL_TYPE_STRING, 0, 0, "Key"},
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  {"EXTRA", 20, MYSQL_TYPE_STRING, 0, 0, "Extra"},
  {"PRIVILEGES", 80, MYSQL_TYPE_STRING, 0, 0, "Privileges"},
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  {"COLUMN_COMMENT", 255, MYSQL_TYPE_STRING, 0, 0, "Comment"},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO charsets_fields_info[]=
{
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  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Charset"},
  {"DEFAULT_COLLATE_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Default collation"},
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  {"DESCRIPTION", 60, MYSQL_TYPE_STRING, 0, 0, "Description"},
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  {"MAXLEN", 3 ,MYSQL_TYPE_LONG, 0, 0, "Maxlen"},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO collation_fields_info[]=
{
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  {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Collation"},
  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, "Charset"},
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  {"ID", 11, MYSQL_TYPE_LONG, 0, 0, "Id"},
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  {"IS_DEFAULT", 3, MYSQL_TYPE_STRING, 0, 0, "Default"},
  {"IS_COMPILED", 3, MYSQL_TYPE_STRING, 0, 0, "Compiled"},
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  {"SORTLEN", 3 ,MYSQL_TYPE_LONG, 0, 0, "Sortlen"},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO coll_charset_app_fields_info[]=
{
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  {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
  {"CHARACTER_SET_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO proc_fields_info[]=
{
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  {"SPECIFIC_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"ROUTINE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"ROUTINE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Db"},
  {"ROUTINE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Name"},
  {"ROUTINE_TYPE", 9, MYSQL_TYPE_STRING, 0, 0, "Type"},
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  {"DTD_IDENTIFIER", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"ROUTINE_BODY", 8, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"ROUTINE_DEFINITION", 65535, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"EXTERNAL_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"EXTERNAL_LANGUAGE", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
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  {"PARAMETER_STYLE", 8, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"IS_DETERMINISTIC", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {"SQL_DATA_ACCESS", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"SQL_PATH", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"SECURITY_TYPE", 7, MYSQL_TYPE_STRING, 0, 0, "Security_type"},
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  {"CREATED", 0, MYSQL_TYPE_TIMESTAMP, 0, 0, "Created"},
  {"LAST_ALTERED", 0, MYSQL_TYPE_TIMESTAMP, 0, 0, "Modified"},
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  {"SQL_MODE", 65535, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"ROUTINE_COMMENT", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Comment"},
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  {"DEFINER", 77, MYSQL_TYPE_STRING, 0, 0, "Definer"},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO stat_fields_info[]=
{
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  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Table"},
  {"NON_UNIQUE", 1, MYSQL_TYPE_LONG, 0, 0, "Non_unique"},
  {"INDEX_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"INDEX_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Key_name"},
  {"SEQ_IN_INDEX", 2, MYSQL_TYPE_LONG, 0, 0, "Seq_in_index"},
  {"COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Column_name"},
  {"COLLATION", 1, MYSQL_TYPE_STRING, 0, 1, "Collation"},
  {"CARDINALITY", 21, MYSQL_TYPE_LONG, 0, 1, "Cardinality"},
  {"SUB_PART", 3, MYSQL_TYPE_LONG, 0, 1, "Sub_part"},
  {"PACKED", 10, MYSQL_TYPE_STRING, 0, 1, "Packed"},
  {"NULLABLE", 3, MYSQL_TYPE_STRING, 0, 0, "Null"},
  {"INDEX_TYPE", 16, MYSQL_TYPE_STRING, 0, 0, "Index_type"},
  {"COMMENT", 16, MYSQL_TYPE_STRING, 0, 1, "Comment"},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO view_fields_info[]=
{
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  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"VIEW_DEFINITION", 65535, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"CHECK_OPTION", 8, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"IS_UPDATABLE", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO user_privileges_fields_info[]=
{
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  {"GRANTEE", 81, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"PRIVILEGE_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"IS_GRANTABLE", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO schema_privileges_fields_info[]=
{
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  {"GRANTEE", 81, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"PRIVILEGE_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"IS_GRANTABLE", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO table_privileges_fields_info[]=
{
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  {"GRANTEE", 81, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"PRIVILEGE_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"IS_GRANTABLE", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO column_privileges_fields_info[]=
{
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  {"GRANTEE", 81, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"PRIVILEGE_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"IS_GRANTABLE", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO table_constraints_fields_info[]=
{
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  {"CONSTRAINT_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"CONSTRAINT_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"CONSTRAINT_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"CONSTRAINT_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO key_column_usage_fields_info[]=
{
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  {"CONSTRAINT_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"CONSTRAINT_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"CONSTRAINT_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
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  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
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  {"TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"ORDINAL_POSITION", 10 ,MYSQL_TYPE_LONG, 0, 0, 0},
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  {"POSITION_IN_UNIQUE_CONSTRAINT", 10 ,MYSQL_TYPE_LONG, 0, 1, 0},
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  {"REFERENCED_TABLE_SCHEMA", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"REFERENCED_TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"REFERENCED_COLUMN_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


ST_FIELD_INFO table_names_fields_info[]=
{
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  {"TABLE_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TABLE_SCHEMA",NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TABLE_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Tables_in_"},
  {"TABLE_TYPE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Table_type"},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
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};


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ST_FIELD_INFO open_tables_fields_info[]=
{
  {"Database", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Database"},
  {"Table",NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Table"},
  {"In_use", 1, MYSQL_TYPE_LONG, 0, 0, "In_use"},
  {"Name_locked", 4, MYSQL_TYPE_LONG, 0, 0, "Name_locked"},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};


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ST_FIELD_INFO triggers_fields_info[]=
{
  {"TRIGGER_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"TRIGGER_SCHEMA",NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"TRIGGER_NAME", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Trigger"},
  {"EVENT_MANIPULATION", 6, MYSQL_TYPE_STRING, 0, 0, "Event"},
  {"EVENT_OBJECT_CATALOG", FN_REFLEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"EVENT_OBJECT_SCHEMA",NAME_LEN, MYSQL_TYPE_STRING, 0, 0, 0},
  {"EVENT_OBJECT_TABLE", NAME_LEN, MYSQL_TYPE_STRING, 0, 0, "Table"},
  {"ACTION_ORDER", 4, MYSQL_TYPE_LONG, 0, 0, 0},
  {"ACTION_CONDITION", 65535, MYSQL_TYPE_STRING, 0, 1, 0},
  {"ACTION_STATEMENT", 65535, MYSQL_TYPE_STRING, 0, 0, "Statement"},
  {"ACTION_ORIENTATION", 9, MYSQL_TYPE_STRING, 0, 0, 0},
  {"ACTION_TIMING", 6, MYSQL_TYPE_STRING, 0, 0, "Timing"},
  {"ACTION_REFERENCE_OLD_TABLE", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"ACTION_REFERENCE_NEW_TABLE", NAME_LEN, MYSQL_TYPE_STRING, 0, 1, 0},
  {"ACTION_REFERENCE_OLD_ROW", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {"ACTION_REFERENCE_NEW_ROW", 3, MYSQL_TYPE_STRING, 0, 0, 0},
  {"CREATED", 0, MYSQL_TYPE_TIMESTAMP, 0, 1, "Created"},
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  {"SQL_MODE", 65535, MYSQL_TYPE_STRING, 0, 0, "sql_mode"},
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  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};


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ST_FIELD_INFO variables_fields_info[]=
{
  {"Variable_name", 80, MYSQL_TYPE_STRING, 0, 0, "Variable_name"},
  {"Value", 255, MYSQL_TYPE_STRING, 0, 0, "Value"},
  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
};


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/*
  Description of ST_FIELD_INFO in table.h
*/

ST_SCHEMA_TABLE schema_tables[]=
{
  {"CHARACTER_SETS", charsets_fields_info, create_schema_table, 
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   fill_schema_charsets, make_character_sets_old_format, 0, -1, -1, 0},
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  {"COLLATIONS", collation_fields_info, create_schema_table, 
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   fill_schema_collation, make_old_format, 0, -1, -1, 0},
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  {"COLLATION_CHARACTER_SET_APPLICABILITY", coll_charset_app_fields_info,
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   create_schema_table, fill_schema_coll_charset_app, 0, 0, -1, -1, 0},
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  {"COLUMNS", columns_fields_info, create_schema_table, 
   get_all_tables, make_columns_old_format, get_schema_column_record, 1, 2, 0},
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  {"COLUMN_PRIVILEGES", column_privileges_fields_info, create_schema_table,
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    fill_schema_column_privileges, 0, 0, -1, -1, 0},
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  {"KEY_COLUMN_USAGE", key_column_usage_fields_info, create_schema_table,
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    get_all_tables, 0, get_schema_key_column_usage_record, 4, 5, 0},
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  {"OPEN_TABLES", open_tables_fields_info, create_schema_table,
   fill_open_tables, make_old_format, 0, -1, -1, 1},
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  {"ROUTINES", proc_fields_info, create_schema_table, 
    fill_schema_proc, make_proc_old_format, 0, -1, -1, 0},
  {"SCHEMATA", schema_fields_info, create_schema_table,
   fill_schema_shemata, make_schemata_old_format, 0, 1, -1, 0},
  {"SCHEMA_PRIVILEGES", schema_privileges_fields_info, create_schema_table,
    fill_schema_schema_privileges, 0, 0, -1, -1, 0},
  {"STATISTICS", stat_fields_info, create_schema_table, 
    get_all_tables, make_old_format, get_schema_stat_record, 1, 2, 0},
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  {"STATUS", variables_fields_info, create_schema_table, fill_status, 
   make_old_format, 0, -1, -1, 1},
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  {"TABLES", tables_fields_info, create_schema_table, 
   get_all_tables, make_old_format, get_schema_tables_record, 1, 2, 0},
  {"TABLE_CONSTRAINTS", table_constraints_fields_info, create_schema_table,
    get_all_tables, 0, get_schema_constraints_record, 3, 4, 0},
  {"TABLE_NAMES", table_names_fields_info, create_schema_table,
   get_all_tables, make_table_names_old_format, 0, 1, 2, 1},
  {"TABLE_PRIVILEGES", table_privileges_fields_info, create_schema_table,
    fill_schema_table_privileges, 0, 0, -1, -1, 0},
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  {"TRIGGERS", triggers_fields_info, create_schema_table,
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   get_all_tables, make_old_format, get_schema_triggers_record, 5, 6, 0},
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  {"VARIABLES", variables_fields_info, create_schema_table, fill_variables,
   make_old_format, 0, -1, -1, 1},
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  {"VIEWS", view_fields_info, create_schema_table, 
    get_all_tables, 0, get_schema_views_record, 1, 2, 0},
  {"USER_PRIVILEGES", user_privileges_fields_info, create_schema_table, 
    fill_schema_user_privileges, 0, 0, -1, -1, 0},
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  {0, 0, 0, 0, 0, 0, 0, 0, 0}
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};


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#ifdef HAVE_EXPLICIT_TEMPLATE_INSTANTIATION
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template class List_iterator_fast<char>;
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template class List<char>;
#endif