test(spanner): skip TestIntegration_StartBackupOperation test with PG dialect because of timeouts.
@@ -3483,6 +3483,7 @@ func readPGSingerTable(iter *RowIterator) ([][]interface{}, error) {
func TestIntegration_StartBackupOperation(t *testing.T) {
skipEmulatorTest(t)
+ skipUnsupportedPGTest(t)
t.Parallel()
startTime := time.Now()
