database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-12-24 11:21:21 +03:00
Code Activity

MDEV-8010 - Avoid sql_alloc() in Items (Patch #1)

Browse Source 
Added mandatory thd parameter to Item (and all derivative classes) constructor.
Added thd parameter to all routines that may create items.
Also removed "current_thd" from Item::Item. This reduced number of
pthread_getspecific() calls from 290 to 177 per OLTP RO transaction.
This commit is contained in:
Sergey Vojtovich
2015-08-11 11:18:38 +04:00
parent 4374da63f0
commit 31e365efae
71 changed files with 2724 additions and 2474 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
sql/sql_update.cc
View File

@@ -1978,7 +1978,7 @@ loop_end:
table to be updated was created by mysql 4.1. Deny this.
*/
field->can_alter_field_type= 0;
Item_field *ifield= new Item_field((Field *) field);
Item_field *ifield= new Item_field(join->thd, (Field *) field);
if (!ifield)
DBUG_RETURN(1);
ifield->maybe_null= 0;