Follow-up to r44584: finishing comment.

diff --git a/includes/api/ApiQueryAllpages.php b/includes/api/ApiQueryAllpages.php
index f26335f..b920944 100644 (file)
--- a/includes/api/ApiQueryAllpages.php
+++ b/includes/api/ApiQueryAllpages.php
@@ -117,7 +117,8 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
                        $this->addTables('langlinks');
                        $this->addWhere('page_id=ll_from');
                        $this->addOption('STRAIGHT_JOIN');
-                       // We have to GROUP BY
+                       // We have to GROUP BY all selected fields to stop
+                       // PostgreSQL from whining
                        $this->addOption('GROUP BY', implode(', ', $selectFields));
                        $forceNameTitleIndex = false;
                }