database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

A fix and a test case for Bug#14210 "Simple query with > operator on

Browse Source 
large table gives server crash": make sure that when a MyISAM temporary
table is created for a cursor, it's created in its memory root,
not the memory root of the current query.
This commit is contained in:
konstantin@mysql.com
2005-11-03 14:20:13 +03:00
parent 69d985cc9d
commit 7e3f757f2d
11 changed files with 184 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
sql/sql_select.cc
View File

@ -8279,7 +8279,8 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
(select_options & (OPTION_BIG_TABLES | SELECT_SMALL_RESULT)) ==
OPTION_BIG_TABLES || (select_options & TMP_TABLE_FORCE_MYISAM))
{
table->file=get_new_handler(table,table->s->db_type= DB_TYPE_MYISAM);
table->file= get_new_handler(table, &table->mem_root,
table->s->db_type= DB_TYPE_MYISAM);
if (group &&
(param->group_parts > table->file->max_key_parts() ||
param->group_length > table->file->max_key_length()))
@ -8287,7 +8288,8 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
}
else
{
table->file=get_new_handler(table,table->s->db_type= DB_TYPE_HEAP);
table->file= get_new_handler(table, &table->mem_root,
table->s->db_type= DB_TYPE_HEAP);
}
if (!using_unique_constraint)
@ -8871,7 +8873,8 @@ bool create_myisam_from_heap(THD *thd, TABLE *table, TMP_TABLE_PARAM *param,
new_table= *table;
new_table.s= &new_table.share_not_to_be_used;
new_table.s->db_type= DB_TYPE_MYISAM;
if (!(new_table.file= get_new_handler(&new_table,DB_TYPE_MYISAM)))
if (!(new_table.file= get_new_handler(&new_table, &new_table.mem_root,
DB_TYPE_MYISAM)))
DBUG_RETURN(1); // End of memory
save_proc_info=thd->proc_info;