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Switch to a more performant query in meta_form().

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Props lumaraf, swissspidy, rarylson, pento
Fixes #24498


git-svn-id: https://develop.svn.wordpress.org/trunk@33390 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Dion Hulse 2015-07-23 05:16:04 +00:00
parent e42e418450
commit f9ec35ddab
1 changed files with 2 additions and 2 deletions
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4
src/wp-admin/includes/template.php
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@ -677,9 +677,9 @@ function meta_form( $post = null ) {
* @param int $limit Number of custom fields to retrieve. Default 30. * @param int $limit Number of custom fields to retrieve. Default 30.
*/ */
$limit = apply_filters( 'postmeta_form_limit', 30 ); $limit = apply_filters( 'postmeta_form_limit', 30 );
$sql = "SELECT meta_key $sql = "SELECT DISTINCT meta_key
FROM $wpdb->postmeta FROM $wpdb->postmeta
GROUP BY meta_key WHERE meta_key NOT BETWEEN '_' AND '_z'
HAVING meta_key NOT LIKE %s HAVING meta_key NOT LIKE %s
ORDER BY meta_key ORDER BY meta_key
LIMIT %d"; LIMIT %d";