database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-01-06 05:22:24 +03:00
Code Activity

BUG#15935: post-review fixes: added comment

Browse Source
This commit is contained in:
unknown
2006-01-26 00:09:04 +03:00
parent 6025cd4672
commit 7dd2ec0f1b
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
sql/sql_update.cc
View File

@@ -243,6 +243,16 @@ int mysql_update(THD *thd,
DISK_BUFFER_SIZE, MYF(MY_WME)))
goto err;
/*
When we get here, we have one of the following options:
A. used_index == MAX_KEY
This means we should use full table scan, and start it with
init_read_record call
B. used_index != MAX_KEY
B.1 quick select is used, start the scan with init_read_record
B.2 quick select is not used, this is full index scan (with LIMIT)
Full index scan must be started with init_read_record_idx
*/
if (used_index == MAX_KEY || (select && select->quick))
init_read_record(&info,thd,table,select,0,1);
else