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Commit 303c3e30 authored by monty@mashka.mysql.fi's avatar monty@mashka.mysql.fi
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Added charset number to result header

parent 0aaab85f
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Showing with 96 additions and 80 deletions
Docs/internals.texi
View file @ 303c3e30
......@@ -1719,9 +1719,16 @@ The field description result set contains the meta info for a result set.
@item string @tab Table name alias (or table name if no alias)
@item string @tab Real table name
@item string @tab Alias for column name (or column name if not used)
@item 11 byte @tab Fixed length fields in one field part:
@itemize
@item 2 byte int @tab Character set number
@item 3 byte int @tab Length of column definition
@item 1 byte int @tab Enum value for field type
@item 3 byte int @tab 2 byte column flags (NOT_NULL_FLAG etc..) + 1 byte number of decimals.
@item 2 byte int @tab zero (reserved for future use)
@end itemize
@item string int @tab Default value, only set when using mysql_list_fields().
@end multitable
......
include/mysql.h
View file @ 303c3e30
......@@ -84,6 +84,7 @@ typedef struct st_mysql_field {
unsigned long max_length; /* Max width of selected set */
unsigned int flags; /* Div flags */
unsigned int decimals; /* Number of decimals in field */
unsigned int charsetnr; /* Character set */
enum enum_field_types type; /* Type of field. Se mysql_com.h for types */
} MYSQL_FIELD;
......
libmysql/libmysql.c
View file @ 303c3e30
......@@ -1150,25 +1150,29 @@ unpack_fields(MYSQL_DATA *data,MEM_ROOT *alloc,uint fields,
free_rows(data); /* Free old data */
DBUG_RETURN(0);
}
bzero((char*) field, (uint) sizeof(MYSQL_FIELD)*fields);
if (server_capabilities & CLIENT_PROTOCOL_41)
{
/* server is 4.1, and returns the new field result format */
for (row=data->data; row ; row = row->next,field++)
{
uchar *pos;
field->db = strdup_root(alloc,(char*) row->data[0]);
field->table = strdup_root(alloc,(char*) row->data[1]);
field->org_table= strdup_root(alloc,(char*) row->data[2]);
field->name = strdup_root(alloc,(char*) row->data[3]);
field->org_name = strdup_root(alloc,(char*) row->data[4]);
field->length = (uint) uint3korr(row->data[5]);
field->type = (enum enum_field_types) (uchar) row->data[6][0];
field->flags= uint2korr(row->data[7]);
field->decimals=(uint) (uchar) row->data[7][2];
/* Unpack fixed length parts */
pos= (uchar*) row->data[5];
field->charsetnr= uint2korr(pos);
field->length= (uint) uint3korr(pos+2);
field->type= (enum enum_field_types) pos[5];
field->flags= uint2korr(pos+6);
field->decimals= (uint) pos[8];
if (INTERNAL_NUM_FIELD(field))
field->flags|= NUM_FLAG;
if (default_value && row->data[8])
if (default_value && row->data[6])
field->def=strdup_root(alloc,(char*) row->data[8]);
else
field->def=0;
......@@ -2841,7 +2845,7 @@ get_info:
mysql->extra_info= net_field_length_ll(&pos); /* Maybe number of rec */
if (!(fields=read_rows(mysql,(MYSQL_FIELD*)0, (protocol_41(mysql) ? 8 : 5))))
if (!(fields=read_rows(mysql,(MYSQL_FIELD*)0, 5)))
DBUG_RETURN(1);
if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc,
(uint) field_count,0,
......@@ -3212,8 +3216,7 @@ mysql_list_fields(MYSQL *mysql, const char *table, const char *wild)
end=strmake(strmake(buff, table,128)+1,wild ? wild : "",128);
if (simple_command(mysql,COM_FIELD_LIST,buff,(ulong) (end-buff),1) ||
!(query = read_rows(mysql,(MYSQL_FIELD*) 0,
(protocol_41(mysql) ? 9 : 6))))
!(query = read_rows(mysql,(MYSQL_FIELD*) 0, 6)))
DBUG_RETURN(NULL);
free_old_query(mysql);
......@@ -3250,7 +3253,7 @@ mysql_list_processes(MYSQL *mysql)
free_old_query(mysql);
pos=(uchar*) mysql->net.read_pos;
field_count=(uint) net_field_length(&pos);
if (!(fields = read_rows(mysql,(MYSQL_FIELD*)0,protocol_41(mysql) ? 8: 5)))
if (!(fields = read_rows(mysql,(MYSQL_FIELD*) 0, 5)))
DBUG_RETURN(NULL);
if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc,field_count,0,
mysql->server_capabilities)))
......
sql/field.cc
View file @ 303c3e30
......@@ -223,6 +223,7 @@ void Field_num::make_field(Send_field *field)
field->org_table_name=table->real_name;
field->table_name=table_name;
field->col_name=field->org_col_name=field_name;
field->charsetnr= charset()->number;
field->length=field_length;
field->type=type();
field->flags=table->maybe_null ? (flags & ~NOT_NULL_FLAG) : flags;
......@@ -237,6 +238,7 @@ void Field_str::make_field(Send_field *field)
field->org_table_name=table->real_name;
field->table_name=table_name;
field->col_name=field->org_col_name=field_name;
field->charsetnr= charset()->number;
field->length=field_length;
field->type=type();
field->flags=table->maybe_null ? (flags & ~NOT_NULL_FLAG) : flags;
......
sql/field.h
View file @ 303c3e30
......@@ -1056,7 +1056,8 @@ class Send_field {
const char *db_name;
const char *table_name,*org_table_name;
const char *col_name,*org_col_name;
uint length,flags,decimals;
ulong length;
uint charsetnr, flags, decimals;
enum_field_types type;
Send_field() {}
};
......
sql/item.cc
View file @ 303c3e30
......@@ -685,11 +685,13 @@ bool Item_field::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
void Item::init_make_field(Send_field *tmp_field,
enum enum_field_types field_type)
{
tmp_field->db_name=(char*) "";
tmp_field->org_table_name=(char*) "";
tmp_field->org_col_name=(char*) "";
tmp_field->table_name=(char*) "";
tmp_field->col_name=name;
char *empty_name= (char*) "";
tmp_field->db_name= empty_name;
tmp_field->org_table_name= empty_name;
tmp_field->org_col_name= empty_name;
tmp_field->table_name= empty_name;
tmp_field->col_name= name;
tmp_field->charsetnr= charset()->number;
tmp_field->flags=maybe_null ? 0 : NOT_NULL_FLAG;
tmp_field->type=field_type;
tmp_field->length=max_length;
......
sql/mysql_priv.h
View file @ 303c3e30
......@@ -654,8 +654,6 @@ bool open_log(MYSQL_LOG *log, const char *hostname,
const char *index_file_name,
enum_log_type type, bool read_append = 0,
bool no_auto_events = 0);
/* mysqld.cc */
void clear_error_message(THD *thd);
/*
External variables
......
sql/mysqld.cc
View file @ 303c3e30
......@@ -1736,17 +1736,6 @@ extern "C" int my_message_sql(uint error, const char *str,
DBUG_RETURN(0);
}
/*
Forget last error message (if we got one)
*/
void clear_error_message(THD *thd)
{
thd->clear_error();
}
#ifdef __WIN__
struct utsname
......
sql/protocol.cc
View file @ 303c3e30
......@@ -132,6 +132,7 @@ void net_send_error(NET *net, uint sql_errno, const char *err)
}
#endif
/*
Send a warning to the end user
......@@ -284,8 +285,8 @@ void my_net_local_init(NET *net __attribute__(unused))
If net->no_send_ok return without sending packet
*/
#ifndef EMBEDDED_LIBRARY
#ifndef EMBEDDED_LIBRARY
void
send_ok(THD *thd, ha_rows affected_rows, ulonglong id, const char *message)
{
......@@ -375,7 +376,6 @@ send_eof(THD *thd, bool no_flush)
/****************************************************************************
Store a field length in logical packet
This is used to code the string length for normal protocol
****************************************************************************/
......@@ -457,9 +457,6 @@ char *net_store_data(char *to,longlong from)
return to+length;
}
/*
Function called by my_net_init() to set some check variables
*/
/*****************************************************************************
Default Protocol functions
......@@ -475,6 +472,7 @@ void Protocol::init(THD *thd_arg)
#endif
}
/*
Send name and type of result to client.
......@@ -534,35 +532,55 @@ bool Protocol::send_fields(List<Item> *list, uint flag)
prot.store(field.org_table_name,
(uint) strlen(field.org_table_name)) ||
prot.store(field.col_name, (uint) strlen(field.col_name)) ||
prot.store(field.org_col_name, (uint) strlen(field.org_col_name)))
prot.store(field.org_col_name, (uint) strlen(field.org_col_name)) ||
packet->realloc(packet->length()+12))
goto err;
/* Store fixed length fields */
pos= (char*) packet->ptr()+packet->length();
*pos++= 11; // Length of packed fields
int2store(pos, field.charsetnr);
int3store(pos+2, field.length);
pos[5]= field.type;
int2store(pos+6,field.flags);
pos[8]= (char) field.decimals;
pos[9]= 0; // For the future
pos[10]= 0; // For the future
pos+= 11;
}
else
{
if (prot.store(field.table_name, (uint) strlen(field.table_name)) ||
prot.store(field.col_name, (uint) strlen(field.col_name)))
prot.store(field.col_name, (uint) strlen(field.col_name)) ||
packet->realloc(packet->length()+10))
goto err;
}
if (packet->realloc(packet->length()+10))
goto err;
pos= (char*) packet->ptr()+packet->length();
pos= (char*) packet->ptr()+packet->length();
#ifdef TO_BE_DELETED_IN_6
if (!(thd->client_capabilities & CLIENT_LONG_FLAG))
{
packet->length(packet->length()+9);
pos[0]=3; int3store(pos+1,field.length);
pos[4]=1; pos[5]=field.type;
pos[6]=2; pos[7]=(char) field.flags; pos[8]= (char) field.decimals;
}
else
if (!(thd->client_capabilities & CLIENT_LONG_FLAG))
{
pos[0]=3;
int3store(pos+1,field.length);
pos[4]=1;
pos[5]=field.type;
pos[6]=2;
pos[7]= (char) field.flags;
pos[8]= (char) field.decimals;
pos+= 9;
}
else
#endif
{
packet->length(packet->length()+10);
pos[0]=3; int3store(pos+1,field.length);
pos[4]=1; pos[5]=field.type;
pos[6]=3; int2store(pos+7,field.flags); pos[9]= (char) field.decimals;
{
pos[0]=3;
int3store(pos+1,field.length);
pos[4]=1;
pos[5]=field.type;
pos[6]=3;
int2store(pos+7,field.flags);
pos[9]= (char) field.decimals;
pos+= 10;
}
}
packet->length((uint) (pos - packet->ptr()));
if (flag & 2)
item->send(&prot, &tmp); // Send default value
if (prot.write())
......@@ -580,6 +598,7 @@ err:
DBUG_RETURN(1); /* purecov: inspected */
}
bool Protocol::send_records_num(List<Item> *list, ulonglong records)
{
char *pos;
......@@ -589,13 +608,12 @@ bool Protocol::send_records_num(List<Item> *list, ulonglong records)
return my_net_write(&thd->net, buff,(uint) (pos-buff));
}
bool Protocol::write()
{
DBUG_ENTER("Protocol::write");
DBUG_RETURN(my_net_write(&thd->net, packet->ptr(), packet->length()));
}
#endif /* EMBEDDED_LIBRARY */
......@@ -653,7 +671,6 @@ bool Protocol::store(I_List<i_string>* str_list)
and client when you are not using prepared statements.
All data are sent as 'packed-string-length' followed by 'string-data'
****************************************************************************/
#ifndef EMBEDDED_LIBRARY
......@@ -676,6 +693,7 @@ bool Protocol_simple::store_null()
}
#endif
bool Protocol_simple::store(const char *from, uint length)
{
#ifndef DEBUG_OFF
......@@ -701,6 +719,7 @@ bool Protocol_simple::store_tiny(longlong from)
(uint) (int10_to_str((int) from,buff, -10)-buff));
}
bool Protocol_simple::store_short(longlong from)
{
#ifndef DEBUG_OFF
......@@ -712,6 +731,7 @@ bool Protocol_simple::store_short(longlong from)
(uint) (int10_to_str((int) from,buff, -10)-buff));
}
bool Protocol_simple::store_long(longlong from)
{
#ifndef DEBUG_OFF
......@@ -747,6 +767,7 @@ bool Protocol_simple::store(float from, uint32 decimals, String *buffer)
return net_store_data((char*) buffer->ptr(), buffer->length());
}
bool Protocol_simple::store(double from, uint32 decimals, String *buffer)
{
#ifndef DEBUG_OFF
......@@ -833,17 +854,18 @@ bool Protocol_simple::store_time(TIME *tm)
Data format:
[ok:1] <-- reserved ok packet
[null_field:(field_count+7+2)/8] <-- reserved to send null data. The size is
calculated using:
bit_fields= (field_count+7+2)/8;
2 bits are reserved
[[length]data] <-- data field (the length applies only for
string/binary/time/timestamp fields and
rest of them are not sent as they have
the default length that client understands
based on the field type
[..]..[[length]data] <-- data
[ok:1] reserved ok packet
[null_field:(field_count+7+2)/8] reserved to send null data. The size is
calculated using:
bit_fields= (field_count+7+2)/8;
2 bits are reserved for identifying type
of package.
[[length]data] data field (the length applies only for
string/binary/time/timestamp fields and
rest of them are not sent as they have
the default length that client understands
based on the field type
[..]..[[length]data] data
****************************************************************************/
bool Protocol_prep::prepare_for_send(List<Item> *item_list)
......@@ -983,7 +1005,7 @@ bool Protocol_prep::store(double from, uint32 decimals, String *buffer)
bool Protocol_prep::store(Field *field)
{
/*
We should not count up field_pos here as send_binary() will call another
We should not increment field_pos here as send_binary() will call another
protocol function to do this for us
*/
if (field->is_null())
......@@ -1057,10 +1079,3 @@ bool Protocol_prep::store_time(TIME *tm)
buff[0]=(char) length; // Length is stored first
return packet->append(buff, length+1, PACKET_BUFFET_EXTRA_ALLOC);
}
#if 0
bool Protocol_prep::send_fields(List<Item> *list, uint flag)
{
return prepare_for_send(list);
};
#endif
sql/sql_parse.cc
View file @ 303c3e30
......@@ -1069,7 +1069,7 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
case COM_CHANGE_USER:
{
thd->change_user();
clear_error_message(thd); // If errors from rollback
thd->clear_error(); // If errors from rollback
statistic_increment(com_other,&LOCK_status);
char *user= (char*) packet;
......@@ -1210,7 +1210,7 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
DBUG_PRINT("query",("%-.4096s",thd->query));
mysql_parse(thd,thd->query, thd->query_length);
while (!thd->fatal_error && thd->lex.found_colon)
while (!thd->killed && !thd->fatal_error && thd->lex.found_colon)
{
char *packet= thd->lex.found_colon;
/*
......@@ -1229,7 +1229,6 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
}
thd->query_length= length;
thd->query= packet;
thd->net.last_error[0]= '\0';
VOID(pthread_mutex_lock(&LOCK_thread_count));
thd->query_id= query_id++;
VOID(pthread_mutex_unlock(&LOCK_thread_count));
......@@ -3259,8 +3258,7 @@ mysql_parse(THD *thd, char *inBuf, uint length)
DBUG_ENTER("mysql_parse");
mysql_init_query(thd);
thd->query_length = length;
thd->net.report_error= 0;
thd->clear_error();
if (query_cache_send_result_to_client(thd, inBuf, length) <= 0)
{
......
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