Add comment_date_gmt key to comments table. Optimize _wp_get_comment_list() query. fixes #5785
git-svn-id: https://develop.svn.wordpress.org/trunk@6825 602fd350-edb4-49c9-b593-d223f7449a82
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@ -53,7 +53,8 @@ CREATE TABLE $wpdb->comments (
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PRIMARY KEY (comment_ID),
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KEY comment_approved (comment_approved),
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KEY comment_post_ID (comment_post_ID),
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KEY comment_approved_date_gmt (comment_approved,comment_date_gmt)
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KEY comment_approved_date_gmt (comment_approved,comment_date_gmt),
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KEY comment_date_gmt (comment_date_gmt)
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) $charset_collate;
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CREATE TABLE $wpdb->links (
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link_id bigint(20) NOT NULL auto_increment,
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@ -556,9 +556,9 @@ function _wp_get_comment_list( $s = false, $start, $num ) {
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comment_author_IP LIKE ('%$s%') OR
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comment_content LIKE ('%$s%') ) AND
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comment_approved != 'spam'
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ORDER BY comment_date DESC LIMIT $start, $num");
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ORDER BY comment_date_gmt DESC LIMIT $start, $num");
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} else {
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$comments = $wpdb->get_results( "SELECT SQL_CALC_FOUND_ROWS * FROM $wpdb->comments WHERE comment_approved = '0' OR comment_approved = '1' ORDER BY comment_date DESC LIMIT $start, $num" );
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$comments = $wpdb->get_results( "SELECT SQL_CALC_FOUND_ROWS * FROM $wpdb->comments USE INDEX (comment_date_gmt) WHERE comment_approved = '0' OR comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT $start, $num" );
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}
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update_comment_cache($comments);
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@ -16,6 +16,6 @@ $wp_version = '2.4-bleeding';
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*
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* @global int $wp_db_version
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*/
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$wp_db_version = 6748;
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$wp_db_version = 6825;
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?>
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?>
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