Ticket #36711: 36711.2.patch

src/wp-includes/post.php

@@ -4248 +4248 @@
 
         $post_types = esc_sql( $post_types );
         $post_type_in_string = "'" . implode( "','", $post_types ) . "'";
+
+        $key          = $in_string . ":" . $post_type_in_string;
+        $last_changed = wp_cache_get( 'last_changed', 'posts' );
+        if ( ! $last_changed ) {
+                $last_changed = microtime();
+                wp_cache_set( 'last_changed', $last_changed, 'posts' );
+        }
+        $cache_key = "get_page_by_path:$key:$last_changed";
+        if ( $cache = wp_cache_get( $cache_key, 'posts' ) ) {
+           return get_post( $cache, $output );
+        }
+
         $sql = "
                 SELECT ID, post_name, post_parent, post_type
                 FROM $wpdb->posts
@@ -4284 +4296 @@
                         }
                 }
         }
+    
+        wp_cache_set( $cache_key, $foundid, 'posts' ); 
 
         if ( $foundid ) {
                 return get_post( $foundid, $output );