Ticket #10964: simple_groupby_modified.10964.diff

wp-includes/query.php

@@ -2586 +2586 @@
                 }
 
                 if ( ! empty($groupby) )
-                        $groupby = 'GROUP BY ' . $groupby;
+                        $thegroupby = 'GROUP BY ' . $groupby;
                 if ( !empty( $orderby ) )
                         $orderby = 'ORDER BY ' . $orderby;
 
-                $found_rows = '';
-                if ( !$q['no_found_rows'] && !empty($limits) )
-                        $found_rows = 'SQL_CALC_FOUND_ROWS';
-
-                $this->request = " SELECT $found_rows $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $groupby $orderby $limits";
+                $this->request = " SELECT $distinct $fields FROM $wpdb->posts $join WHERE 1=1 $where $thegroupby $orderby $limits";
                 if ( !$q['suppress_filters'] )
                         $this->request = apply_filters_ref_array('posts_request', array( $this->request, &$this ) );
 
@@ -2634 +2630 @@
                 }
 
                 if ( !$q['no_found_rows'] && !empty($limits) ) {
-                        $found_posts_query = apply_filters_ref_array( 'found_posts_query', array( 'SELECT FOUND_ROWS()', &$this ) );
+                        if( !empty($groupby) ) {
+                                $found_posts_query = apply_filters_ref_array( 'found_posts_query', array( " SELECT COUNT(distinct $groupby) FROM $wpdb->posts $join WHERE 1=1 $where $orderby", &$this ) );
+                        } else {
+                                $found_posts_query = apply_filters_ref_array( 'found_posts_query', array( " SELECT COUNT(*) FROM $wpdb->posts $join WHERE 1=1 $where $orderby", &$this ) );
+                        }
                         $this->found_posts = $wpdb->get_var( $found_posts_query );
                         $this->found_posts = apply_filters_ref_array( 'found_posts', array( $this->found_posts, &$this ) );
                         $this->max_num_pages = ceil($this->found_posts / $q['posts_per_page']);