TAJO-718: A group-by clause with the same columns but aliased causes planning error. (hyunsik)
TAJO-718: A group-by clause with the same columns but aliased causes planning error. (Add missed test query files)
TAJO-691: HashJoin or HashAggregation is too slow if there is many unique keys. (hyoungjunkim via hyunsik)
TAJO-714: Enable setting Parquet tuning parameters from table metadata.