Index: Classes/Persistence/Generic/Storage/Typo3DbBackend.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/Classes/Persistence/Generic/Storage/Typo3DbBackend.php b/Classes/Persistence/Generic/Storage/Typo3DbBackend.php
--- a/Classes/Persistence/Generic/Storage/Typo3DbBackend.php	(revision 7c883b2e9e904ee573b906b74fffadbab22b2645)
+++ b/Classes/Persistence/Generic/Storage/Typo3DbBackend.php	(date 1625740457641)
@@ -609,14 +609,18 @@
         // record to find out all possible fields in this database table
         $fieldsOfMainTable = $pageRepository->getRawRecord($tableName, $rows[0]['uid']);
         $overlaidRows = [];
-        foreach ($rows as $row) {
-            $mainRow = array_intersect_key($row, $fieldsOfMainTable);
-            $joinRow = array_diff_key($row, $mainRow);
-            $mainRow = $this->overlayLanguageAndWorkspaceForSingleRecord($tableName, $mainRow, $pageRepository, $query);
-            if ($mainRow !== null && is_array($mainRow)) {
-                $overlaidRows[] = array_replace($joinRow, $mainRow);
+
+        if ($fieldsOfMainTable !== 0) {
+            foreach ($rows as $row) {
+                $mainRow = array_intersect_key($row, $fieldsOfMainTable);
+                $joinRow = array_diff_key($row, $mainRow);
+                $mainRow = $this->overlayLanguageAndWorkspaceForSingleRecord($tableName, $mainRow, $pageRepository, $query);
+                if ($mainRow !== null && is_array($mainRow)) {
+                    $overlaidRows[] = array_replace($joinRow, $mainRow);
+                }
             }
         }
+
         return $overlaidRows;
     }