Index: typo3/sysext/extbase/Classes/Persistence/Generic/Storage/Typo3DbBackend.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/typo3/sysext/extbase/Classes/Persistence/Generic/Storage/Typo3DbBackend.php b/typo3/sysext/extbase/Classes/Persistence/Generic/Storage/Typo3DbBackend.php
--- a/typo3/sysext/extbase/Classes/Persistence/Generic/Storage/Typo3DbBackend.php	(date 1614150223981)
+++ b/typo3/sysext/extbase/Classes/Persistence/Generic/Storage/Typo3DbBackend.php	(date 1614150223981)
@@ -483,7 +483,12 @@
                 $queryBuilder->resetQueryPart('groupBy')
                              ->selectLiteral(sprintf('COUNT(DISTINCT %s.%s)', $tableName, $fieldName));
             } else {
-                $queryBuilder->count('*');
+                $fullSql = $queryBuilder->getSQL();
+                $queryBuilder
+                    ->resetQueryParts()
+                    ->selectLiteral('count(*)')
+                    ->getConcreteQueryBuilder()->from("({$fullSql})", 'temporary')
+                ;
             }
 
             try {