TAJO-387: Query is hanging when errors occurs in Query or SubQuery class. (hyunsik)
TAJO-387: Query is hanging when errors occurs in Query or SubQuery class. (Added a missed changelog)
TAJO-389: The LazyTuple does not work when number format exception occurs in text deserializer. (jinho)
TAJO-304: drop table command should not remove data files in default. (hyunsik)