Ticket #24093: 24093.1.patch

wp-includes/meta.php

@@ -807 +807 @@
                                 continue;
                         }
 
-                        $join[$i]  = "INNER JOIN $meta_table";
-                        $join[$i] .= $i ? " AS $alias" : '';
-                        $join[$i] .= " ON ($primary_table.$primary_id_column = $alias.$meta_id_column)";
-
                         $where[$k] = '';
                         if ( !empty( $meta_key ) )
                                 $where[$k] = $wpdb->prepare( "$alias.meta_key = %s", $meta_key );
@@ -848 +844 @@
                         if ( ! empty( $where[$k] ) )
                                 $where[$k] .= ' AND ';
 
-                        $where[$k] = ' (' . $where[$k] . $wpdb->prepare( "CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$meta_compare_string})", $meta_value );
+                        $where[$k] = ' ' . $primary_table . '.' . $primary_id_column . ' IN (SELECT ' . $meta_id_column . ' FROM ' . $alias . ' WHERE ' . $where[$k] . $wpdb->prepare( "CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$meta_compare_string})", $meta_value );
                 }
 
                 $where = array_filter( $where );