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Order by and index on comment_date_gmt instead of comment_date to insulate order from offset changes. fixes #5773

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git-svn-id: http://svn.automattic.com/wordpress/trunk@6736 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
ryan 2008-02-05 23:29:59 +00:00
parent 057c2dfccf
commit 8fecb97b09
3 changed files with 4 additions and 4 deletions
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2
wp-admin/includes/schema.php
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@ -53,7 +53,7 @@ CREATE TABLE $wpdb->comments (
PRIMARY KEY (comment_ID), PRIMARY KEY (comment_ID),
KEY comment_approved (comment_approved), KEY comment_approved (comment_approved),
KEY comment_post_ID (comment_post_ID), KEY comment_post_ID (comment_post_ID),
KEY comment_approved_date (comment_approved,comment_date) KEY comment_approved_date_gmt (comment_approved,comment_date_gmt)
) $charset_collate; ) $charset_collate;
CREATE TABLE $wpdb->links ( CREATE TABLE $wpdb->links (
link_id bigint(20) NOT NULL auto_increment, link_id bigint(20) NOT NULL auto_increment,

4
wp-includes/comment.php
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@ -207,10 +207,10 @@ function get_lastcommentmodified($timezone = 'server') {
switch ( strtolower($timezone)) { switch ( strtolower($timezone)) {
case 'gmt': case 'gmt':
$lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date DESC LIMIT 1"); $lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1");
break; break;
case 'blog': case 'blog':
$lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date DESC LIMIT 1"); $lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1");
break; break;
case 'server': case 'server':
$lastcommentmodified = $wpdb->get_var($wpdb->prepare("SELECT DATE_ADD(comment_date_gmt, INTERVAL %s SECOND) FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1", $add_seconds_server)); $lastcommentmodified = $wpdb->get_var($wpdb->prepare("SELECT DATE_ADD(comment_date_gmt, INTERVAL %s SECOND) FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1", $add_seconds_server));

2
wp-includes/version.php
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@ -16,6 +16,6 @@ $wp_version = '2.4-bleeding';
* *
* @global int $wp_db_version * @global int $wp_db_version
*/ */
$wp_db_version = 6731; $wp_db_version = 6736;
?> ?>