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-rw-r--r--lib/private/DB/QueryBuilder/QueryBuilder.php4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/private/DB/QueryBuilder/QueryBuilder.php b/lib/private/DB/QueryBuilder/QueryBuilder.php
index ebbcdeb0870..25d59fb7d7d 100644
--- a/lib/private/DB/QueryBuilder/QueryBuilder.php
+++ b/lib/private/DB/QueryBuilder/QueryBuilder.php
@@ -1170,6 +1170,10 @@ class QueryBuilder implements IQueryBuilder {
* @return string
*/
public function getTableName($table) {
+ if ($table instanceof IQueryFunction) {
+ return (string) $table;
+ }
+
$table = $this->prefixTableName($table);
return $this->helper->quoteColumnName($table);
}