database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

ha_innodb.cc, ha_innodb.h:

Browse Source 
Fix assertion when a temporary table is created and used inside LOCK TABLES
This commit is contained in:
heikki@hundin.mysql.fi
2002-09-20 23:26:21 +03:00
parent 12bf4a08a0
commit cff9c1df1e
2 changed files with 38 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
sql/ha_innodb.cc
View File

@ -3638,10 +3638,43 @@ ha_innobase::reset(void)
return(0);
}
/**********************************************************************
When we create a temporary table inside MySQL LOCK TABLES, MySQL will
not call external_lock for the temporary table when it uses it. Instead,
it will call this function. */
int
start_stmt(
/*=======*/
/* out: 0 or error code */
THD* thd) /* in: handle to the user thread */
{
row_prebuilt_t* prebuilt = (row_prebuilt_t*) innobase_prebuilt;
trx_t* trx;
DBUG_ENTER("ha_innobase::external_lock");
update_thd(thd);
trx = prebuilt->trx;
innobase_release_stat_resources(trx);
trx_mark_sql_stat_end(trx);
auto_inc_counter_for_this_stat = 0;
prebuilt->sql_stat_start = TRUE;
prebuilt->hint_no_need_to_fetch_extra_cols = TRUE;
prebuilt->read_just_key = 0;
prebuilt->select_lock_type = LOCK_NONE;
thd->transaction.all.innodb_active_trans = 1;
}
/**********************************************************************
As MySQL will execute an external lock for every new table it uses when it
starts to process an SQL statement, we can use this function to store the
pointer to the THD in the handle. We will also use this function to communicate
starts to process an SQL statement (an exception is when MySQL calls
start_stmt for the handle) we can use this function to store the pointer to
the THD in the handle. We will also use this function to communicate
to InnoDB that a new SQL statement has started and that we must store a
savepoint to our transaction handle, so that we are able to roll back
the SQL statement in case of an error. */
@ -3649,6 +3682,7 @@ the SQL statement in case of an error. */
int
ha_innobase::external_lock(
/*=======================*/
/* out: 0 or error code */
THD* thd, /* in: handle to the user thread */
int lock_type) /* in: lock type */
{