makary/phpbb
1
0
Fork 0
mirror of https://github.com/phpbb/phpbb.git synced 2025-06-29 06:38:52 +00:00
Code Issues Projects Releases Packages Wiki Activity

[ticket/15941] Replace MAX SQL in functions_posting.php

Browse source 
Replace MAX SQL function with faster query using order by and limit.
The ajacent query could also be optimized to eliminate the usage of MAX.
Note that adding a compound key as suggested by EXPLAIN SQL yields an
improvement, but not nearly as fast as ORDER + LIMIT.

PHPBB3-15941
This commit is contained in:
jasonmarlin 2019-01-17 20:27:10 -05:00
parent cffdc8efff
commit a0f1ec852a
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
phpBB/includes/functions_posting.php
View file

@ -200,7 +200,7 @@ function update_post_information($type, $ids, $return_update_sql = false)
$topic_condition = ''; $topic_condition = '';
} }
if (count($ids) == 1) if (count($ids) === 1)
{ {
$sql = 'SELECT p.post_id as last_post_id $sql = 'SELECT p.post_id as last_post_id
FROM ' . POSTS_TABLE . " p $topic_join FROM ' . POSTS_TABLE . " p $topic_join