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Commit d098bfff authored by unknown's avatar unknown
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Merge malff@bk-internal.mysql.com:/home/bk/mysql-5.1-runtime 

into  weblab.(none):/home/marcsql/TREE/mysql-5.1-27857
parents 8b8b2888 83de46bc
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Showing with 535 additions and 338 deletions
include/my_sys.h
View file @ d098bfff
......@@ -904,6 +904,14 @@ extern CHARSET_INFO *get_charset(uint cs_number, myf flags);
extern CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags);
extern CHARSET_INFO *get_charset_by_csname(const char *cs_name,
uint cs_flags, myf my_flags);
extern bool resolve_charset(CHARSET_INFO **cs,
const char *cs_name,
CHARSET_INFO *default_cs);
extern bool resolve_collation(CHARSET_INFO **cl,
const char *cl_name,
CHARSET_INFO *default_cl);
extern void free_charsets(void);
extern char *get_charsets_dir(char *buf);
extern my_bool my_charset_same(CHARSET_INFO *cs1, CHARSET_INFO *cs2);
......
mysql-test/t/events_restart_phase3.test
View file @ d098bfff
......@@ -18,3 +18,4 @@ drop database events_test;
let $wait_condition=
select count(*) = 0 from information_schema.processlist
where db='events_test' and command = 'Connect' and user=current_user();
--source include/wait_condition.inc
mysys/charset.c
View file @ d098bfff
......@@ -573,6 +573,70 @@ CHARSET_INFO *get_charset_by_csname(const char *cs_name,
}
/**
Resolve character set by the character set name (utf8, latin1, ...).
The function tries to resolve character set by the specified name. If
there is character set with the given name, it is assigned to the "cs"
parameter and FALSE is returned. If there is no such character set,
"default_cs" is assigned to the "cs" and TRUE is returned.
@param[out] cs Variable to store character set.
@param[in] cs_name Character set name.
@param[in] default_cs Default character set.
@return FALSE if character set was resolved successfully; TRUE if there
is no character set with given name.
*/
bool resolve_charset(CHARSET_INFO **cs,
const char *cs_name,
CHARSET_INFO *default_cs)
{
*cs= get_charset_by_csname(cs_name, MY_CS_PRIMARY, MYF(0));
if (*cs == NULL)
{
*cs= default_cs;
return TRUE;
}
return FALSE;
}
/**
Resolve collation by the collation name (utf8_general_ci, ...).
The function tries to resolve collation by the specified name. If there
is collation with the given name, it is assigned to the "cl" parameter
and FALSE is returned. If there is no such collation, "default_cl" is
assigned to the "cl" and TRUE is returned.
@param[out] cl Variable to store collation.
@param[in] cl_name Collation name.
@param[in] default_cl Default collation.
@return FALSE if collation was resolved successfully; TRUE if there is no
collation with given name.
*/
bool resolve_collation(CHARSET_INFO **cl,
const char *cl_name,
CHARSET_INFO *default_cl)
{
*cl= get_charset_by_name(cl_name, MYF(0));
if (*cl == NULL)
{
*cl= default_cl;
return TRUE;
}
return FALSE;
}
/*
Escape string with backslashes (\)
......
sql/event_data_objects.cc
View file @ d098bfff
......@@ -94,6 +94,7 @@ Event_parse_data::Event_parse_data()
:on_completion(Event_basic::ON_COMPLETION_DROP),
status(Event_basic::ENABLED),
do_not_create(FALSE),
body_changed(FALSE),
item_starts(NULL), item_ends(NULL), item_execute_at(NULL),
starts_null(TRUE), ends_null(TRUE), execute_at_null(TRUE),
item_expression(NULL), expression(0)
......@@ -103,8 +104,8 @@ Event_parse_data::Event_parse_data()
/* Actually in the parser STARTS is always set */
starts= ends= execute_at= 0;
body.str= comment.str= NULL;
body.length= comment.length= 0;
comment.str= NULL;
comment.length= 0;
DBUG_VOID_RETURN;
}
......@@ -137,36 +138,6 @@ Event_parse_data::init_name(THD *thd, sp_name *spn)
}
/*
Set body of the event - what should be executed.
SYNOPSIS
Event_parse_data::init_body()
thd THD
NOTE
The body is extracted by copying all data between the
start of the body set by another method and the current pointer in Lex.
See related code in sp_head::init_strings().
*/
void
Event_parse_data::init_body(THD *thd)
{
DBUG_ENTER("Event_parse_data::init_body");
/* This method is called from within the parser, from sql_yacc.yy */
DBUG_ASSERT(thd->m_lip != NULL);
body.length= thd->m_lip->get_cpp_ptr() - body_begin;
body.str= thd->strmake(body_begin, body.length);
trim_whitespace(thd->charset(), & body);
DBUG_VOID_RETURN;
}
/*
This function is called on CREATE EVENT or ALTER EVENT. When either
ENDS or AT is in the past, we are trying to create an event that
......@@ -788,36 +759,32 @@ Event_timed::init()
}
/*
Loads an event's body from a row from mysql.event
SYNOPSIS
Event_job_data::load_from_row(THD *thd, TABLE *table)
RETURN VALUE
0 OK
EVEX_GET_FIELD_FAILED Error
NOTES
This method is silent on errors and should behave like that. Callers
should handle throwing of error messages. The reason is that the class
should not know about how to deal with communication.
/**
Load an event's body from a row from mysql.event.
@details This method is silent on errors and should behave like that.
Callers should handle throwing of error messages. The reason is that the
class should not know about how to deal with communication.
@return Operation status
@retval FALSE OK
@retval TRUE Error
*/
int
bool
Event_job_data::load_from_row(THD *thd, TABLE *table)
{
char *ptr;
uint len;
LEX_STRING tz_name;
DBUG_ENTER("Event_job_data::load_from_row");
if (!table)
goto error;
DBUG_RETURN(TRUE);
if (table->s->fields < ET_FIELD_COUNT)
goto error;
DBUG_RETURN(TRUE);
LEX_STRING tz_name;
if (load_string_fields(table->field,
ET_FIELD_DB, &dbname,
ET_FIELD_NAME, &name,
......@@ -825,10 +792,10 @@ Event_job_data::load_from_row(THD *thd, TABLE *table)
ET_FIELD_DEFINER, &definer,
ET_FIELD_TIME_ZONE, &tz_name,
ET_FIELD_COUNT))
goto error;
DBUG_RETURN(TRUE);
if (load_time_zone(thd, tz_name))
goto error;
DBUG_RETURN(TRUE);
ptr= strchr(definer.str, '@');
......@@ -845,29 +812,23 @@ Event_job_data::load_from_row(THD *thd, TABLE *table)
sql_mode= (ulong) table->field[ET_FIELD_SQL_MODE]->val_int();
DBUG_RETURN(0);
error:
DBUG_RETURN(EVEX_GET_FIELD_FAILED);
DBUG_RETURN(FALSE);
}
/*
Loads an event from a row from mysql.event
SYNOPSIS
Event_queue_element::load_from_row(THD *thd, TABLE *table)
/**
Load an event's body from a row from mysql.event.
RETURN VALUE
0 OK
EVEX_GET_FIELD_FAILED Error
@details This method is silent on errors and should behave like that.
Callers should handle throwing of error messages. The reason is that the
class should not know about how to deal with communication.
NOTES
This method is silent on errors and should behave like that. Callers
should handle throwing of error messages. The reason is that the class
should not know about how to deal with communication.
@return Operation status
@retval FALSE OK
@retval TRUE Error
*/
int
bool
Event_queue_element::load_from_row(THD *thd, TABLE *table)
{
char *ptr;
......@@ -877,10 +838,10 @@ Event_queue_element::load_from_row(THD *thd, TABLE *table)
DBUG_ENTER("Event_queue_element::load_from_row");
if (!table)
goto error;
DBUG_RETURN(TRUE);
if (table->s->fields < ET_FIELD_COUNT)
goto error;
DBUG_RETURN(TRUE);
if (load_string_fields(table->field,
ET_FIELD_DB, &dbname,
......@@ -888,10 +849,10 @@ Event_queue_element::load_from_row(THD *thd, TABLE *table)
ET_FIELD_DEFINER, &definer,
ET_FIELD_TIME_ZONE, &tz_name,
ET_FIELD_COUNT))
goto error;
DBUG_RETURN(TRUE);
if (load_time_zone(thd, tz_name))
goto error;
DBUG_RETURN(TRUE);
starts_null= table->field[ET_FIELD_STARTS]->is_null();
if (!starts_null)
......@@ -921,7 +882,7 @@ Event_queue_element::load_from_row(THD *thd, TABLE *table)
{
if (table->field[ET_FIELD_EXECUTE_AT]->get_date(&time,
TIME_NO_ZERO_DATE))
goto error;
DBUG_RETURN(TRUE);
execute_at= sec_since_epoch_TIME(&time);
}
......@@ -940,13 +901,13 @@ Event_queue_element::load_from_row(THD *thd, TABLE *table)
table->field[ET_FIELD_TRANSIENT_INTERVAL]->val_str(&str);
if (!(tmp.length= str.length()))
goto error;
DBUG_RETURN(TRUE);
tmp.str= str.c_ptr_safe();
i= find_string_in_array(interval_type_to_name, &tmp, system_charset_info);
if (i < 0)
goto error;
DBUG_RETURN(TRUE);
interval= (interval_type) i;
}
......@@ -959,7 +920,7 @@ Event_queue_element::load_from_row(THD *thd, TABLE *table)
last_executed_changed= FALSE;
if ((ptr= get_field(&mem_root, table->field[ET_FIELD_STATUS])) == NullS)
goto error;
DBUG_RETURN(TRUE);
DBUG_PRINT("load_from_row", ("Event [%s] is [%s]", name.str, ptr));
......@@ -978,40 +939,34 @@ Event_queue_element::load_from_row(THD *thd, TABLE *table)
break;
}
if ((ptr= get_field(&mem_root, table->field[ET_FIELD_ORIGINATOR])) == NullS)
goto error;
DBUG_RETURN(TRUE);
originator = table->field[ET_FIELD_ORIGINATOR]->val_int();
/* ToDo : Andrey . Find a way not to allocate ptr on event_mem_root */
if ((ptr= get_field(&mem_root,
table->field[ET_FIELD_ON_COMPLETION])) == NullS)
goto error;
DBUG_RETURN(TRUE);
on_completion= (ptr[0]=='D'? Event_queue_element::ON_COMPLETION_DROP:
Event_queue_element::ON_COMPLETION_PRESERVE);
DBUG_RETURN(0);
error:
DBUG_RETURN(EVEX_GET_FIELD_FAILED);
DBUG_RETURN(FALSE);
}
/*
Loads an event from a row from mysql.event
SYNOPSIS
Event_timed::load_from_row(THD *thd, TABLE *table)
/**
Load an event's body from a row from mysql.event.
RETURN VALUE
0 OK
EVEX_GET_FIELD_FAILED Error
@details This method is silent on errors and should behave like that.
Callers should handle throwing of error messages. The reason is that the
class should not know about how to deal with communication.
NOTES
This method is silent on errors and should behave like that. Callers
should handle throwing of error messages. The reason is that the class
should not know about how to deal with communication.
@return Operation status
@retval FALSE OK
@retval TRUE Error
*/
int
bool
Event_timed::load_from_row(THD *thd, TABLE *table)
{
char *ptr;
......@@ -1020,12 +975,12 @@ Event_timed::load_from_row(THD *thd, TABLE *table)
DBUG_ENTER("Event_timed::load_from_row");
if (Event_queue_element::load_from_row(thd, table))
goto error;
DBUG_RETURN(TRUE);
if (load_string_fields(table->field,
ET_FIELD_BODY, &body,
ET_FIELD_COUNT))
goto error;
DBUG_RETURN(TRUE);
ptr= strchr(definer.str, '@');
......@@ -1052,9 +1007,7 @@ Event_timed::load_from_row(THD *thd, TABLE *table)
sql_mode= (ulong) table->field[ET_FIELD_SQL_MODE]->val_int();
DBUG_RETURN(0);
error:
DBUG_RETURN(EVEX_GET_FIELD_FAILED);
DBUG_RETURN(FALSE);
}
......@@ -1875,11 +1828,9 @@ Event_job_data::execute(THD *thd, bool drop)
{
Lex_input_stream lip(thd, thd->query, thd->query_length);
thd->m_lip= &lip;
lex_start(thd);
int err= MYSQLparse(thd);
if (err || thd->is_fatal_error)
if (parse_sql(thd, &lip))
{
sql_print_error("Event Scheduler: "
"%serror during compilation of %s.%s",
......
sql/event_data_objects.h
View file @ d098bfff
......@@ -77,7 +77,7 @@ class Event_basic
Event_basic();
virtual ~Event_basic();
virtual int
virtual bool
load_from_row(THD *thd, TABLE *table) = 0;
protected:
......@@ -119,7 +119,7 @@ class Event_queue_element : public Event_basic
Event_queue_element();
virtual ~Event_queue_element();
virtual int
virtual bool
load_from_row(THD *thd, TABLE *table);
bool
......@@ -157,7 +157,7 @@ class Event_timed : public Event_queue_element
void
init();
virtual int
virtual bool
load_from_row(THD *thd, TABLE *table);
int
......@@ -176,7 +176,7 @@ class Event_job_data : public Event_basic
Event_job_data();
virtual int
virtual bool
load_from_row(THD *thd, TABLE *table);
bool
......@@ -205,12 +205,11 @@ class Event_parse_data : public Sql_alloc
*/
bool do_not_create;
const char *body_begin;
bool body_changed;
LEX_STRING dbname;
LEX_STRING name;
LEX_STRING definer;// combination of user and host
LEX_STRING body;
LEX_STRING comment;
Item* item_starts;
......@@ -235,9 +234,6 @@ class Event_parse_data : public Sql_alloc
bool
check_parse_data(THD *thd);
void
init_body(THD *thd);
private:
void
......
sql/event_db_repository.cc
View file @ d098bfff
......@@ -15,6 +15,7 @@
#include "mysql_priv.h"
#include "event_db_repository.h"
#include "sp_head.h"
#include "event_data_objects.h"
#include "events.h"
#include "sql_show.h"
......@@ -141,7 +142,10 @@ const TABLE_FIELD_W_TYPE event_table_fields[ET_FIELD_COUNT] =
*/
static bool
mysql_event_fill_row(THD *thd, TABLE *table, Event_parse_data *et,
mysql_event_fill_row(THD *thd,
TABLE *table,
Event_parse_data *et,
sp_head *sp,
my_bool is_update)
{
CHARSET_INFO *scs= system_charset_info;
......@@ -152,7 +156,6 @@ mysql_event_fill_row(THD *thd, TABLE *table, Event_parse_data *et,
DBUG_PRINT("info", ("dbname=[%s]", et->dbname.str));
DBUG_PRINT("info", ("name =[%s]", et->name.str));
DBUG_PRINT("info", ("body =[%s]", et->body.str));
if (table->s->fields < ET_FIELD_COUNT)
{
......@@ -187,12 +190,19 @@ mysql_event_fill_row(THD *thd, TABLE *table, Event_parse_data *et,
Change the SQL_MODE only if body was present in an ALTER EVENT and of course
always during CREATE EVENT.
*/
if (et->body.str)
if (et->body_changed)
{
DBUG_ASSERT(sp->m_body.str);
fields[ET_FIELD_SQL_MODE]->store((longlong)thd->variables.sql_mode, TRUE);
if (fields[f_num= ET_FIELD_BODY]->store(et->body.str, et->body.length, scs))
if (fields[f_num= ET_FIELD_BODY]->store(sp->m_body.str,
sp->m_body.length,
scs))
{
goto err_truncate;
}
}
if (et->expression)
{
......@@ -513,10 +523,12 @@ Event_db_repository::create_event(THD *thd, Event_parse_data *parse_data,
{
int ret= 1;
TABLE *table= NULL;
sp_head *sp= thd->lex->sphead;
DBUG_ENTER("Event_db_repository::create_event");
DBUG_PRINT("info", ("open mysql.event for update"));
DBUG_ASSERT(sp);
if (open_event_table(thd, TL_WRITE, &table))
goto end;
......@@ -561,7 +573,7 @@ Event_db_repository::create_event(THD *thd, Event_parse_data *parse_data,
goto end;
}
if (parse_data->body.length > table->field[ET_FIELD_BODY]->field_length)
if (sp->m_body.length > table->field[ET_FIELD_BODY]->field_length)
{
my_error(ER_TOO_LONG_BODY, MYF(0), parse_data->name.str);
goto end;
......@@ -573,7 +585,7 @@ Event_db_repository::create_event(THD *thd, Event_parse_data *parse_data,
mysql_event_fill_row() calls my_error() in case of error so no need to
handle it here
*/
if (mysql_event_fill_row(thd, table, parse_data, FALSE))
if (mysql_event_fill_row(thd, table, parse_data, sp, FALSE))
goto end;
table->field[ET_FIELD_STATUS]->store((longlong)parse_data->status, TRUE);
......@@ -617,7 +629,9 @@ Event_db_repository::update_event(THD *thd, Event_parse_data *parse_data,
{
CHARSET_INFO *scs= system_charset_info;
TABLE *table= NULL;
sp_head *sp= thd->lex->sphead;
int ret= 1;
DBUG_ENTER("Event_db_repository::update_event");
/* None or both must be set */
......@@ -661,7 +675,7 @@ Event_db_repository::update_event(THD *thd, Event_parse_data *parse_data,
mysql_event_fill_row() calls my_error() in case of error so no need to
handle it here
*/
if (mysql_event_fill_row(thd, table, parse_data, TRUE))
if (mysql_event_fill_row(thd, table, parse_data, sp, TRUE))
goto end;
if (new_dbname)
......
sql/handler.cc
View file @ d098bfff
......@@ -3376,8 +3376,8 @@ TYPELIB *ha_known_exts(void)
const char **ext, *old_ext;
known_extensions_id= mysys_usage_id;
found_exts.push_back((char*) triggers_file_ext);
found_exts.push_back((char*) trigname_file_ext);
found_exts.push_back((char*) TRG_EXT);
found_exts.push_back((char*) TRN_EXT);
plugin_foreach(NULL, exts_handlerton,
MYSQL_STORAGE_ENGINE_PLUGIN, &found_exts);
......
sql/mysql_priv.h
View file @ d098bfff
......@@ -101,7 +101,7 @@ char* query_table_status(THD *thd,const char *db,const char *table_name);
ER_WARN_DEPRECATED_SYNTAX, ER(ER_WARN_DEPRECATED_SYNTAX), \
(Old), (Ver), (New)); \
else \
sql_print_warning("The syntax %s is deprecated and will be removed " \
sql_print_warning("The syntax '%s' is deprecated and will be removed " \
"in MySQL %s. Please use %s instead.", (Old), (Ver), (New)); \
} while(0)
......@@ -618,6 +618,8 @@ bool check_string_char_length(LEX_STRING *str, const char *err_msg,
uint max_char_length, CHARSET_INFO *cs,
bool no_error);
bool parse_sql(THD *thd, class Lex_input_stream *lip);
enum enum_mysql_completiontype {
ROLLBACK_RELEASE=-2, ROLLBACK=1, ROLLBACK_AND_CHAIN=7,
COMMIT_RELEASE=-1, COMMIT=0, COMMIT_AND_CHAIN=6
......@@ -1588,6 +1590,7 @@ bool check_db_dir_existence(const char *db_name);
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
bool load_db_opt_by_name(THD *thd, const char *db_name,
HA_CREATE_INFO *db_create_info);
CHARSET_INFO *get_default_db_collation(THD *thd, const char *db_name);
bool my_dbopt_init(void);
void my_dbopt_cleanup(void);
extern int creating_database; // How many database locks are made
......@@ -1608,8 +1611,8 @@ extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
extern const char **errmesg; /* Error messages */
extern const char *myisam_recover_options_str;
extern const char *in_left_expr_name, *in_additional_cond, *in_having_cond;
extern const char * const triggers_file_ext;
extern const char * const trigname_file_ext;
extern const char * const TRG_EXT;
extern const char * const TRN_EXT;
extern Eq_creator eq_creator;
extern Ne_creator ne_creator;
extern Gt_creator gt_creator;
......@@ -1953,7 +1956,6 @@ void free_list(I_List <i_string_pair> *list);
void free_list(I_List <i_string> *list);
/* sql_yacc.cc */
extern int MYSQLparse(void *thd);
#ifndef DBUG_OFF
extern void turn_parser_debug_on();
#endif
......@@ -2145,6 +2147,12 @@ bool schema_table_store_record(THD *thd, TABLE *table);
int item_create_init();
void item_create_cleanup();
inline void lex_string_set(LEX_STRING *lex_str, const char *c_str)
{
lex_str->str= (char *) c_str;
lex_str->length= strlen(c_str);
}
#endif /* MYSQL_SERVER */
#endif /* MYSQL_CLIENT */
......
sql/sp.cc
View file @ d098bfff
......@@ -384,15 +384,13 @@ db_load_routine(THD *thd, int type, sp_name *name, sp_head **sphp,
if ((ret= sp_use_new_db(thd, name->m_db, &old_db, 1, &dbchanged)))
goto end;
thd->spcont= NULL;
{
Lex_input_stream lip(thd, defstr.c_ptr(), defstr.length());
thd->m_lip= &lip;
lex_start(thd);
ret= MYSQLparse(thd);
}
thd->spcont= 0;
if (ret || thd->is_fatal_error || newlex.sphead == NULL)
if (parse_sql(thd, &lip) || newlex.sphead == NULL)
{
sp_head *sp= newlex.sphead;
......@@ -410,6 +408,8 @@ db_load_routine(THD *thd, int type, sp_name *name, sp_head **sphp,
(*sphp)->set_info(created, modified, &chistics, sql_mode);
(*sphp)->optimize();
}
}
end:
lex_end(thd->lex);
thd->spcont= old_spcont;
......
sql/sp_head.cc
View file @ d098bfff
......@@ -1268,30 +1268,31 @@ set_routine_security_ctx(THD *thd, sp_head *sp, bool is_proc,
#endif // ! NO_EMBEDDED_ACCESS_CHECKS
/*
/**
Execute trigger stored program.
Execute a trigger:
- changes security context for triggers
- switch to new memroot
- call sp_head::execute
- restore old memroot
- restores security context
- changes security context for triggers;
- switch to new memroot;
- call sp_head::execute;
- restore old memroot;
- restores security context.
SYNOPSIS
sp_head::execute_trigger()
thd Thread handle
db database name
table table name
grant_info GRANT_INFO structure to be filled with
information about definer's privileges
on subject table
@param thd Thread context.
@param db_name Database name.
@param table_name Table name.
@param grant_info GRANT_INFO structure to be filled with information
about definer's privileges on subject table.
RETURN
FALSE on success
TRUE on error
@return Error status.
@retval FALSE on success.
@retval TRUE on error.
*/
bool
sp_head::execute_trigger(THD *thd, const char *db, const char *table,
sp_head::execute_trigger(THD *thd,
const LEX_STRING *db_name,
const LEX_STRING *table_name,
GRANT_INFO *grant_info)
{
sp_rcontext *octx = thd->spcont;
......@@ -1304,6 +1305,46 @@ sp_head::execute_trigger(THD *thd, const char *db, const char *table,
DBUG_ENTER("sp_head::execute_trigger");
DBUG_PRINT("info", ("trigger %s", m_name.str));
#ifndef NO_EMBEDDED_ACCESS_CHECKS
Security_context *save_ctx= NULL;
if (m_chistics->suid != SP_IS_NOT_SUID &&
m_security_ctx.change_security_context(thd,
&m_definer_user,
&m_definer_host,
&m_db,
&save_ctx))
DBUG_RETURN(TRUE);
/*
Fetch information about table-level privileges for subject table into
GRANT_INFO instance. The access check itself will happen in
Item_trigger_field, where this information will be used along with
information about column-level privileges.
*/
fill_effective_table_privileges(thd,
grant_info,
db_name->str,
table_name->str);
/* Check that the definer has TRIGGER privilege on the subject table. */
if (!(grant_info->privilege & TRIGGER_ACL))
{
char priv_desc[128];
get_privilege_desc(priv_desc, sizeof(priv_desc), TRIGGER_ACL);
my_error(ER_TABLEACCESS_DENIED_ERROR, MYF(0), priv_desc,
thd->security_ctx->priv_user, thd->security_ctx->host_or_ip,
table_name->str);
m_security_ctx.restore_security_context(thd, save_ctx);
DBUG_RETURN(TRUE);
}
#endif // NO_EMBEDDED_ACCESS_CHECKS
/*
Prepare arena and memroot for objects which lifetime is whole
duration of trigger call (sp_rcontext, it's tables and items,
......@@ -1336,6 +1377,11 @@ sp_head::execute_trigger(THD *thd, const char *db, const char *table,
err_with_cleanup:
thd->restore_active_arena(&call_arena, &backup_arena);
#ifndef NO_EMBEDDED_ACCESS_CHECKS
m_security_ctx.restore_security_context(thd, save_ctx);
#endif // NO_EMBEDDED_ACCESS_CHECKS
delete nctx;
call_arena.free_items();
free_root(&call_mem_root, MYF(0));
......
sql/sp_head.h
View file @ d098bfff
......@@ -216,8 +216,10 @@ class sp_head :private Query_arena
destroy();
bool
execute_trigger(THD *thd, const char *db, const char *table,
GRANT_INFO *grant_onfo);
execute_trigger(THD *thd,
const LEX_STRING *db_name,
const LEX_STRING *table_name,
GRANT_INFO *grant_info);
bool
execute_function(THD *thd, Item **args, uint argcount, Field *return_fld);
......
sql/sql_class.cc
View file @ d098bfff
......@@ -342,7 +342,8 @@ THD::THD()
in_lock_tables(0),
bootstrap(0),
derived_tables_processing(FALSE),
spcont(NULL)
spcont(NULL),
m_lip(NULL)
{
ulong tmp;
......
sql/sql_db.cc
View file @ d098bfff
......@@ -538,6 +538,37 @@ bool load_db_opt_by_name(THD *thd, const char *db_name,
}
/**
Return default database collation.
@param thd Thread context.
@param db_name Database name.
@return CHARSET_INFO object. The operation always return valid character
set, even if the database does not exist.
*/
CHARSET_INFO *get_default_db_collation(THD *thd, const char *db_name)
{
HA_CREATE_INFO db_info;
if (thd->db != NULL && strcmp(db_name, thd->db) == 0)
return thd->db_charset;
load_db_opt_by_name(thd, db_name, &db_info);
/*
NOTE: even if load_db_opt_by_name() fails,
db_info.default_table_charset contains valid character set
(collation_server). We should not fail if load_db_opt_by_name() fails,
because it is valid case. If a database has been created just by
"mkdir", it does not contain db.opt file, but it is valid database.
*/
return db_info.default_table_charset;
}
/*
Create a database
......@@ -751,10 +782,8 @@ bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create_info)
if ((error=write_db_opt(thd, path, create_info)))
goto exit;
/*
Change options if current database is being altered
TODO: Delete this code
*/
/* Change options if current database is being altered. */
if (thd->db && !strcmp(thd->db,db))
{
thd->db_charset= create_info->default_table_charset ?
......@@ -1358,6 +1387,7 @@ bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name, bool force_switch)
Security_context *sctx= thd->security_ctx;
ulong db_access= sctx->db_access;
CHARSET_INFO *db_default_cl;
DBUG_ENTER("mysql_change_db");
DBUG_PRINT("enter",("name: '%s'", new_db_name->str));
......@@ -1487,16 +1517,9 @@ bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name, bool force_switch)
attributes and will be freed in THD::~THD().
*/
{
HA_CREATE_INFO db_options;
db_default_cl= get_default_db_collation(thd, new_db_file_name.str);
load_db_opt_by_name(thd, new_db_name->str, &db_options);
mysql_change_db_impl(thd, &new_db_file_name, db_access,
db_options.default_table_charset ?
db_options.default_table_charset :
thd->variables.collation_server);
}
mysql_change_db_impl(thd, &new_db_file_name, db_access, db_default_cl);
DBUG_RETURN(FALSE);
}
......
sql/sql_parse.cc
View file @ d098bfff
......@@ -5343,12 +5343,11 @@ void mysql_parse(THD *thd, const char *inBuf, uint length,
sp_cache_flush_obsolete(&thd->sp_func_cache);
Lex_input_stream lip(thd, inBuf, length);
thd->m_lip= &lip;
int err= MYSQLparse(thd);
bool err= parse_sql(thd, &lip);
*found_semicolon= lip.found_semicolon;
if (!err && ! thd->is_fatal_error)
if (!err)
{
#ifndef NO_EMBEDDED_ACCESS_CHECKS
if (mqh_used && thd->user_connect &&
......@@ -5371,8 +5370,8 @@ void mysql_parse(THD *thd, const char *inBuf, uint length,
PROCESSLIST.
Note that we don't need LOCK_thread_count to modify query_length.
*/
if (lip.found_semicolon &&
(thd->query_length= (ulong)(lip.found_semicolon - thd->query)))
if (*found_semicolon &&
(thd->query_length= (ulong)(*found_semicolon - thd->query)))
thd->query_length--;
/* Actually execute the query */
mysql_execute_command(thd);
......@@ -5426,12 +5425,10 @@ bool mysql_test_parse_for_slave(THD *thd, char *inBuf, uint length)
DBUG_ENTER("mysql_test_parse_for_slave");
Lex_input_stream lip(thd, inBuf, length);
thd->m_lip= &lip;
lex_start(thd);
mysql_reset_thd_for_next_command(thd);
int err= MYSQLparse((void*) thd);
if (!err && ! thd->is_fatal_error &&
if (!parse_sql(thd, &lip) &&
all_tables_not_ok(thd,(TABLE_LIST*) lex->select_lex.table_list.first))
error= 1; /* Ignore question */
thd->end_statement();
......@@ -7123,3 +7120,34 @@ bool check_string_char_length(LEX_STRING *str, const char *err_msg,
my_error(ER_WRONG_STRING_LENGTH, MYF(0), str->str, err_msg, max_char_length);
return TRUE;
}
extern int MYSQLparse(void *thd); // from sql_yacc.cc
/**
This is a wrapper of MYSQLparse(). All the code should call parse_sql()
instead of MYSQLparse().
@param thd Thread context.
@param lip Lexer context.
@return Error status.
@retval FALSE on success.
@retval TRUE on parsing error.
*/
bool parse_sql(THD *thd, Lex_input_stream *lip)
{
bool err_status;
DBUG_ASSERT(thd->m_lip == NULL);
thd->m_lip= lip;
err_status= MYSQLparse(thd) != 0 || thd->is_fatal_error;
thd->m_lip= NULL;
return err_status;
}
sql/sql_partition.cc
View file @ d098bfff
......@@ -3696,7 +3696,6 @@ bool mysql_unpack_partition(THD *thd,
thd->variables.character_set_client= system_charset_info;
Lex_input_stream lip(thd, part_buf, part_info_len);
thd->m_lip= &lip;
lex_start(thd);
/*
......@@ -3725,7 +3724,7 @@ bool mysql_unpack_partition(THD *thd,
lex.part_info->part_state= part_state;
lex.part_info->part_state_len= part_state_len;
DBUG_PRINT("info", ("Parse: %s", part_buf));
if (MYSQLparse((void*)thd) || thd->is_fatal_error)
if (parse_sql(thd, &lip))
{
thd->free_items();
goto end;
......
sql/sql_prepare.cc
View file @ d098bfff
......@@ -2858,12 +2858,11 @@ bool Prepared_statement::prepare(const char *packet, uint packet_len)
Lex_input_stream lip(thd, thd->query, thd->query_length);
lip.stmt_prepare_mode= TRUE;
thd->m_lip= &lip;
lex_start(thd);
int err= MYSQLparse((void *)thd);
error= err || thd->is_fatal_error ||
thd->net.report_error || init_param_array(this);
error= parse_sql(thd, &lip) ||
thd->net.report_error ||
init_param_array(this);
/*
While doing context analysis of the query (in check_prepared_statement)
......
sql/sql_trigger.cc
View file @ d098bfff
......@@ -23,7 +23,7 @@
static const LEX_STRING triggers_file_type=
{ C_STRING_WITH_LEN("TRIGGERS") };
const char * const triggers_file_ext= ".TRG";
const char * const TRG_EXT= ".TRG";
/*
Table of .TRG file field descriptors.
......@@ -79,7 +79,7 @@ struct st_trigname
static const LEX_STRING trigname_file_type=
{ C_STRING_WITH_LEN("TRIGGERNAME") };
const char * const trigname_file_ext= ".TRN";
const char * const TRN_EXT= ".TRN";
static File_option trigname_file_parameters[]=
{
......@@ -132,6 +132,7 @@ class Handle_old_incorrect_trigger_table_hook: public Unknown_key_hook
LEX_STRING *trigger_table_value;
};
/*
Create or drop trigger for table.
......@@ -463,14 +464,14 @@ bool Table_triggers_list::create_trigger(THD *thd, TABLE_LIST *tables,
sql_create_definition_file() files handles renaming and backup of older
versions
*/
file.length= build_table_filename(file_buff, FN_REFLEN-1,
file.length= build_table_filename(file_buff, FN_REFLEN - 1,
tables->db, tables->table_name,
triggers_file_ext, 0);
TRG_EXT, 0);
file.str= file_buff;
trigname_file.length= build_table_filename(trigname_buff, FN_REFLEN-1,
tables->db,
lex->spname->m_name.str,
trigname_file_ext, 0);
TRN_EXT, 0);
trigname_file.str= trigname_buff;
/* Use the filesystem to enforce trigger namespace constraints. */
......@@ -604,7 +605,7 @@ bool Table_triggers_list::create_trigger(THD *thd, TABLE_LIST *tables,
static bool rm_trigger_file(char *path, const char *db,
const char *table_name)
{
build_table_filename(path, FN_REFLEN-1, db, table_name, triggers_file_ext, 0);
build_table_filename(path, FN_REFLEN-1, db, table_name, TRG_EXT, 0);
return my_delete(path, MYF(MY_WME));
}
......@@ -627,8 +628,7 @@ static bool rm_trigger_file(char *path, const char *db,
static bool rm_trigname_file(char *path, const char *db,
const char *trigger_name)
{
build_table_filename(path, FN_REFLEN-1,
db, trigger_name, trigname_file_ext, 0);
build_table_filename(path, FN_REFLEN - 1, db, trigger_name, TRN_EXT, 0);
return my_delete(path, MYF(MY_WME));
}
......@@ -653,8 +653,8 @@ static bool save_trigger_file(Table_triggers_list *triggers, const char *db,
char file_buff[FN_REFLEN];
LEX_STRING file;
file.length= build_table_filename(file_buff, FN_REFLEN-1, db, table_name,
triggers_file_ext, 0);
file.length= build_table_filename(file_buff, FN_REFLEN - 1, db, table_name,
TRG_EXT, 0);
file.str= file_buff;
return sql_create_definition_file(NULL, &file, &triggers_file_type,
(uchar*)triggers, triggers_file_parameters,
......@@ -834,8 +834,8 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
DBUG_ENTER("Table_triggers_list::check_n_load");
path.length= build_table_filename(path_buff, FN_REFLEN-1,
db, table_name, triggers_file_ext, 0);
path.length= build_table_filename(path_buff, FN_REFLEN - 1,
db, table_name, TRG_EXT, 0);
path.str= path_buff;
// QQ: should we analyze errno somehow ?
......@@ -981,12 +981,10 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
thd->variables.sql_mode= (ulong)*trg_sql_mode;
Lex_input_stream lip(thd, trg_create_str->str, trg_create_str->length);
thd->m_lip= &lip;
lex_start(thd);
thd->spcont= 0;
int err= MYSQLparse((void *)thd);
if (err || thd->is_fatal_error)
if (parse_sql(thd, &lip))
{
/* Currently sphead is always deleted in case of a parse error */
DBUG_ASSERT(lex.sphead == 0);
......@@ -1108,7 +1106,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
be merged into .FRM anyway.
*/
my_error(ER_WRONG_OBJECT, MYF(0),
table_name, triggers_file_ext+1, "TRIGGER");
table_name, TRG_EXT + 1, "TRIGGER");
DBUG_RETURN(1);
}
......@@ -1168,43 +1166,38 @@ bool Table_triggers_list::get_trigger_info(THD *thd, trg_event_type event,
}
/*
/**
Find trigger's table from trigger identifier and add it to
the statement table list.
SYNOPSIS
mysql_table_for_trigger()
thd - current thread context
trig - identifier for trigger
if_exists - treat a not existing trigger as a warning if TRUE
table - pointer to TABLE_LIST object for the table trigger (output)
RETURN VALUE
0 Success
1 Error
@param[in] thd Thread context.
@param[in] trg_name Trigger name.
@param[in] if_exists TRUE if SQL statement contains "IF EXISTS" clause.
That means a warning instead of error should be
thrown if trigger with given name does not exist.
@param[out] table Pointer to TABLE_LIST object for the
table trigger.
@return Operation status
@retval FALSE On success.
@retval TRUE Otherwise.
*/
int
add_table_for_trigger(THD *thd, sp_name *trig, bool if_exists,
bool add_table_for_trigger(THD *thd,
sp_name *trg_name,
bool if_exists,
TABLE_LIST **table)
{
LEX *lex= thd->lex;
char path_buff[FN_REFLEN];
LEX_STRING path;
File_parser *parser;
struct st_trigname trigname;
Handle_old_incorrect_trigger_table_hook trigger_table_hook(
path_buff, &trigname.trigger_table);
char trn_path_buff[FN_REFLEN];
LEX_STRING trn_path= { trn_path_buff, 0 };
LEX_STRING tbl_name;
DBUG_ENTER("add_table_for_trigger");
DBUG_ASSERT(table != NULL);
path.length= build_table_filename(path_buff, FN_REFLEN-1,
trig->m_db.str, trig->m_name.str,
trigname_file_ext, 0);
path.str= path_buff;
build_trn_path(thd, trg_name, &trn_path);
if (access(path_buff, F_OK))
if (check_trn_exists(&trn_path))
{
if (if_exists)
{
......@@ -1212,39 +1205,27 @@ add_table_for_trigger(THD *thd, sp_name *trig, bool if_exists,
MYSQL_ERROR::WARN_LEVEL_NOTE,
ER_TRG_DOES_NOT_EXIST,
ER(ER_TRG_DOES_NOT_EXIST));
*table= NULL;
DBUG_RETURN(0);
}
my_error(ER_TRG_DOES_NOT_EXIST, MYF(0));
DBUG_RETURN(1);
DBUG_RETURN(FALSE);
}
if (!(parser= sql_parse_prepare(&path, thd->mem_root, 1)))
DBUG_RETURN(1);
if (!is_equal(&trigname_file_type, parser->type()))
{
my_error(ER_WRONG_OBJECT, MYF(0), trig->m_name.str, trigname_file_ext+1,
"TRIGGERNAME");
DBUG_RETURN(1);
my_error(ER_TRG_DOES_NOT_EXIST, MYF(0));
DBUG_RETURN(TRUE);
}
if (parser->parse((uchar*)&trigname, thd->mem_root,
trigname_file_parameters, 1,
&trigger_table_hook))
DBUG_RETURN(1);
if (load_table_name_for_trigger(thd, trg_name, &trn_path, &tbl_name))
DBUG_RETURN(TRUE);
/* We need to reset statement table list to be PS/SP friendly. */
lex->query_tables= 0;
lex->query_tables_last= &lex->query_tables;
*table= sp_add_to_query_tables(thd, lex, trig->m_db.str,
trigname.trigger_table.str, TL_IGNORE);
if (! *table)
DBUG_RETURN(1);
*table= sp_add_to_query_tables(thd, lex, trg_name->m_db.str,
tbl_name.str, TL_IGNORE);
DBUG_RETURN(0);
DBUG_RETURN(*table ? FALSE : TRUE);
}
......@@ -1428,7 +1409,7 @@ Table_triggers_list::change_table_name_in_trignames(const char *db_name,
{
trigname_file.length= build_table_filename(trigname_buff, FN_REFLEN-1,
db_name, trigger->str,
trigname_file_ext, 0);
TRN_EXT, 0);
trigname_file.str= trigname_buff;
trigname.trigger_table= *new_table_name;
......@@ -1537,17 +1518,33 @@ bool Table_triggers_list::change_table_name(THD *thd, const char *db,
}
bool Table_triggers_list::process_triggers(THD *thd, trg_event_type event,
/**
Execute trigger for given (event, time) pair.
The operation executes trigger for the specified event (insert, update,
delete) and time (after, before) if it is set.
@param thd
@param event
@param time_type,
@param old_row_is_record1
@return Error status.
@retval FALSE on success.
@retval TRUE on error.
*/
bool Table_triggers_list::process_triggers(THD *thd,
trg_event_type event,
trg_action_time_type time_type,
bool old_row_is_record1)
{
bool err_status= FALSE;
sp_head *sp_trigger= bodies[event][time_type];
if (sp_trigger)
{
bool err_status;
Sub_statement_state statement_state;
if (!bodies[event][time_type])
return FALSE;
if (old_row_is_record1)
{
old_field= record1_field;
......@@ -1558,56 +1555,17 @@ bool Table_triggers_list::process_triggers(THD *thd, trg_event_type event,
new_field= record1_field;
old_field= trigger_table->field;
}
#ifndef NO_EMBEDDED_ACCESS_CHECKS
Security_context *sctx= &sp_trigger->m_security_ctx;
Security_context *save_ctx= NULL;
if (sp_trigger->m_chistics->suid != SP_IS_NOT_SUID &&
sctx->change_security_context(thd,
&sp_trigger->m_definer_user,
&sp_trigger->m_definer_host,
&sp_trigger->m_db,
&save_ctx))
return TRUE;
/*
Fetch information about table-level privileges to GRANT_INFO structure for
subject table. Check of privileges that will use it and information about
column-level privileges will happen in Item_trigger_field::fix_fields().
*/
fill_effective_table_privileges(thd,
&subject_table_grants[event][time_type],
trigger_table->s->db.str,
trigger_table->s->table_name.str);
/* Check that the definer has TRIGGER privilege on the subject table. */
if (!(subject_table_grants[event][time_type].privilege & TRIGGER_ACL))
{
char priv_desc[128];
get_privilege_desc(priv_desc, sizeof(priv_desc), TRIGGER_ACL);
my_error(ER_TABLEACCESS_DENIED_ERROR, MYF(0), priv_desc,
thd->security_ctx->priv_user, thd->security_ctx->host_or_ip,
trigger_table->s->table_name.str);
sctx->restore_security_context(thd, save_ctx);
return TRUE;
}
#endif // NO_EMBEDDED_ACCESS_CHECKS
thd->reset_sub_statement_state(&statement_state, SUB_STMT_TRIGGER);
err_status= sp_trigger->execute_trigger
(thd, trigger_table->s->db.str, trigger_table->s->table_name.str,
err_status=
bodies[event][time_type]->execute_trigger(
thd,
&trigger_table->s->db,
&trigger_table->s->table_name,
&subject_table_grants[event][time_type]);
thd->restore_sub_statement_state(&statement_state);
#ifndef NO_EMBEDDED_ACCESS_CHECKS
sctx->restore_security_context(thd, save_ctx);
#endif // NO_EMBEDDED_ACCESS_CHECKS
}
thd->restore_sub_statement_state(&statement_state);
return err_status;
}
......@@ -1749,3 +1707,95 @@ process_unknown_string(char *&unknown_key, uchar* base, MEM_ROOT *mem_root,
}
DBUG_RETURN(FALSE);
}
/**
Contruct path to TRN-file.
@param thd[in] Thread context.
@param trg_name[in] Trigger name.
@param trn_path[out] Variable to store constructed path
*/
void build_trn_path(THD *thd, const sp_name *trg_name, LEX_STRING *trn_path)
{
/* Construct path to the TRN-file. */
trn_path->length= build_table_filename(trn_path->str,
FN_REFLEN - 1,
trg_name->m_db.str,
trg_name->m_name.str,
TRN_EXT,
0);
}
/**
Check if TRN-file exists.
@return
@retval TRUE if TRN-file does not exist.
@retval FALSE if TRN-file exists.
*/
bool check_trn_exists(const LEX_STRING *trn_path)
{
return access(trn_path->str, F_OK) != 0;
}
/**
Retrieve table name for given trigger.
@param thd[in] Thread context.
@param trg_name[in] Trigger name.
@param trn_path[in] Path to the corresponding TRN-file.
@param tbl_name[out] Variable to store retrieved table name.
@return Error status.
@retval FALSE on success.
@retval TRUE if table name could not be retrieved.
*/
bool load_table_name_for_trigger(THD *thd,
const sp_name *trg_name,
const LEX_STRING *trn_path,
LEX_STRING *tbl_name)
{
File_parser *parser;
struct st_trigname trn_data;
Handle_old_incorrect_trigger_table_hook trigger_table_hook(
trn_path->str,
&trn_data.trigger_table);
DBUG_ENTER("load_table_name_for_trigger");
/* Parse the TRN-file. */
if (!(parser= sql_parse_prepare(trn_path, thd->mem_root, TRUE)))
DBUG_RETURN(TRUE);
if (!is_equal(&trigname_file_type, parser->type()))
{
my_error(ER_WRONG_OBJECT, MYF(0),
trg_name->m_name.str,
TRN_EXT + 1,
"TRIGGERNAME");
DBUG_RETURN(TRUE);
}
if (parser->parse((uchar*) &trn_data, thd->mem_root,
trigname_file_parameters, 1,
&trigger_table_hook))
DBUG_RETURN(TRUE);
/* Copy trigger table name. */
*tbl_name= trn_data.trigger_table;
/* That's all. */
DBUG_RETURN(FALSE);
}
sql/sql_trigger.h
View file @ d098bfff
......@@ -17,7 +17,7 @@
/*
This class holds all information about triggers of table.
QQ: Will it be merged into TABLE in future ?
QQ: Will it be merged into TABLE in the future ?
*/
class Table_triggers_list: public Sql_alloc
......@@ -143,6 +143,17 @@ class Table_triggers_list: public Sql_alloc
extern const LEX_STRING trg_action_time_type_names[];
extern const LEX_STRING trg_event_type_names[];
int
add_table_for_trigger(THD *thd, sp_name *trig, bool if_exists,
bool add_table_for_trigger(THD *thd,
sp_name *trg_name,
bool continue_if_not_exist,
TABLE_LIST **table);
void build_trn_path(THD *thd, const sp_name *trg_name, LEX_STRING *trn_path);
bool check_trn_exists(const LEX_STRING *trn_path);
bool load_table_name_for_trigger(THD *thd,
const sp_name *trg_name,
const LEX_STRING *trn_path,
LEX_STRING *tbl_name);
sql/sql_view.cc
View file @ d098bfff
......@@ -893,7 +893,7 @@ bool mysql_make_view(THD *thd, File_parser *parser, TABLE_LIST *table,
LEX *old_lex, *lex;
Query_arena *arena, backup;
TABLE_LIST *top_view= table->top_table();
int res;
bool res;
bool result, view_is_mergeable;
TABLE_LIST *view_main_select_tables;
DBUG_ENTER("mysql_make_view");
......@@ -1005,7 +1005,6 @@ bool mysql_make_view(THD *thd, File_parser *parser, TABLE_LIST *table,
{
Lex_input_stream lip(thd, table->query.str, table->query.length);
thd->m_lip= &lip;
lex_start(thd);
view_select= &lex->select_lex;
view_select->select_number= ++thd->select_number;
......@@ -1039,7 +1038,7 @@ bool mysql_make_view(THD *thd, File_parser *parser, TABLE_LIST *table,
MODE_IGNORE_SPACE | MODE_NO_BACKSLASH_ESCAPES);
CHARSET_INFO *save_cs= thd->variables.character_set_client;
thd->variables.character_set_client= system_charset_info;
res= MYSQLparse((void *)thd);
res= parse_sql(thd, &lip);
if ((old_lex->sql_command == SQLCOM_SHOW_FIELDS) ||
(old_lex->sql_command == SQLCOM_SHOW_CREATE))
......@@ -1048,7 +1047,7 @@ bool mysql_make_view(THD *thd, File_parser *parser, TABLE_LIST *table,
thd->variables.character_set_client= save_cs;
thd->variables.sql_mode= save_mode;
}
if (!res && !thd->is_fatal_error)
if (!res)
{
TABLE_LIST *view_tables= lex->query_tables;
TABLE_LIST *view_tables_tail= 0;
......
sql/sql_yacc.yy
View file @ d098bfff
......@@ -1873,9 +1873,6 @@ ev_sql_stmt:
lex->sphead->m_chistics= &lex->sp_chistics;
lex->sphead->m_body_begin= lip->get_cpp_ptr();
lex->event_parse_data->body_begin= lip->get_cpp_ptr();
}
ev_sql_stmt_inner
{
......@@ -1888,7 +1885,7 @@ ev_sql_stmt:
lex->sp_chistics.suid= SP_IS_SUID; //always the definer!
lex->event_parse_data->init_body(thd);
lex->event_parse_data->body_changed= TRUE;
}
;
......
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