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

Merged with mysql-5.1 tree.

Browse Source 
client/mysqltest.cc:
  Manually merged
configure.in:
  Manually merged
mysql-test/r/variables.result:
  Manually merged
mysql-test/t/variables.test:
  Manually merged
mysys/my_pread.c:
  Manually merged
mysys/my_read.c:
  Manually merged
sql/mysqld.cc:
  Manually merged
storage/csv/ha_tina.h:
  Manually merged
storage/myisam/ha_myisam.cc:
  Manually merged
storage/myisam/mi_check.c:
  Manually merged
storage/myisam/mi_search.c:
  Manually merged
This commit is contained in:
Michael Widenius
2009-04-25 13:05:32 +03:00
parent 210a412522 086185089e
commit e726e587ec
264 changed files with 4589 additions and 1605 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
sql/sql_select.cc
View File

@ -7658,7 +7658,7 @@ static COND *build_equal_items_for_cond(THD *thd, COND *cond,
if (and_level)
{
/*
Retrieve all conjucts of this level detecting the equality
Retrieve all conjuncts of this level detecting the equality
that are subject to substitution by multiple equality items and
removing each such predicate from the conjunction after having
found/created a multiple equality whose inference the predicate is.
@ -7674,6 +7674,15 @@ static COND *build_equal_items_for_cond(THD *thd, COND *cond,
li.remove();
}
/*
Check if we eliminated all the predicates of the level, e.g.
(a=a AND b=b AND a=a).
*/
if (!args->elements &&
!cond_equal.current_level.elements &&
!eq_list.elements)
return new Item_int((longlong) 1, 1);
List_iterator_fast<Item_equal> it(cond_equal.current_level);
while ((item_equal= it++))
{
@ -9820,6 +9829,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields,
table->in_use= thd;
table->quick_keys.init();
table->covering_keys.init();
table->merge_keys.init();
table->keys_in_use_for_query.init();
table->s= share;