@Test
public void testSchemaCompletionWithJoin() throws SqlParseException {

    String sql = "select * from t1 join (select * from t2 join (select * from t3))";
    String exceptSQL = "select * from EDW.t1 join (select * from EDW.t2 join (select * from EDW.t3))";
    Assert.assertEquals(exceptSQL, PushDownUtil.schemaCompletion(sql, "EDW"));
}