diff --git a/core/lib/Drupal/Core/Database/Driver/pgsql/Upsert.php b/core/lib/Drupal/Core/Database/Driver/pgsql/Upsert.php
index e23092d..62caceb 100644
--- a/core/lib/Drupal/Core/Database/Driver/pgsql/Upsert.php
+++ b/core/lib/Drupal/Core/Database/Driver/pgsql/Upsert.php
@@ -38,7 +38,7 @@ public function execute() {
 
     try {
       // First, lock the table we're upserting into.
-      $this->connection->query('LOCK TABLE {' . $table . '} IN SHARE ROW EXCLUSIVE MODE', [], $this->queryOptions);
+//      $this->connection->query('LOCK TABLE {' . $table . '} IN SHARE ROW EXCLUSIVE MODE', [], $this->queryOptions);
 
       // Second, delete all items first so we can do one insert.
       $unique_key_position = array_search($this->key, $insert_fields);