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In WP_Meta_Query, don't cast meta_value to CHAR.

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`CHAR` is redundant, since the `meta_value` column is `LONGTEXT`. Meanwhile,
use of `CAST()` causes MySQL to ignore any index that the administrator may
have added to the column.

A number of automated tests were doing searches for `CAST` in the SQL strings
generated by `WP_Meta_Query` (for reasons unrelated to the `CAST()` behavior).
These tests have been updated to expect the new query format.

Props ericlewis.
Fixes #36625.
Built from https://develop.svn.wordpress.org/trunk@37594


git-svn-id: http://core.svn.wordpress.org/trunk@37562 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Boone Gorges 2016-05-30 04:36:27 +00:00
parent e64aa77090
commit fc1d2c99c9
2 changed files with 6 additions and 2 deletions
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6
wp-includes/class-wp-meta-query.php
View File

@ -632,7 +632,11 @@ class WP_Meta_Query {
}
if ( $where ) {
$sql_chunks['where'][] = "CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$where}";
if ( 'CHAR' === $meta_type ) {
$sql_chunks['where'][] = "$alias.meta_value {$meta_compare} {$where}";
} else {
$sql_chunks['where'][] = "CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$where}";
}
}
}

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '4.6-alpha-37593';
$wp_version = '4.6-alpha-37594';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.