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Backport of revno: 3514

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Bug#40181 Made use of tdc_remove_table instead of just 
setting share->version to 0 to make sure all unused table
instances go away as part of CREATE/ALTER TABLE.
This commit is contained in:
Jon Olav Hauglid
2009-12-10 14:15:50 +01:00
parent 1cfcd2d210
commit 28b0eeff28
3 changed files with 37 additions and 6 deletions
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21
sql/sql_partition.cc
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@@ -4189,7 +4189,9 @@ bool mysql_unpack_partition(THD *thd,
*/
thd->free_items();
part_info= thd->work_part_info;
table->s->version= 0UL;
tdc_remove_table(thd, TDC_RT_REMOVE_UNUSED,
table->s->db.str,
table->s->table_name.str);
*work_part_info_used= true;
}
table->part_info= part_info;
@@ -4482,12 +4484,17 @@ uint prep_alter_part_table(THD *thd, TABLE *table, Alter_info *alter_info,
/*
We are going to manipulate the partition info on the table object
so we need to ensure that the data structure of the table object
is freed by setting version to 0. table->s->version= 0 forces a
flush of the table object in close_thread_tables().
so we need to ensure that the table instances cached and all other
instances are properly closed.
*/
if (table->part_info)
table->s->version= 0L;
{
pthread_mutex_lock(&LOCK_open);
tdc_remove_table(thd, TDC_RT_REMOVE_UNUSED,
table->s->db.str,
table->s->table_name.str);
pthread_mutex_unlock(&LOCK_open);
}
thd->work_part_info= thd->lex->part_info;
if (thd->work_part_info &&
@@ -6242,7 +6249,9 @@ static int alter_close_tables(ALTER_PARTITION_PARAM_TYPE *lpt)
alter_partition_lock_handling() and the table is closed
by close_thread_tables() instead.
*/
table->s->version= 0;
tdc_remove_table(thd, TDC_RT_REMOVE_UNUSED,
table->s->db.str,
table->s->table_name.str);
}
}
pthread_mutex_unlock(&LOCK_open);