This is the first patch for timestamp type. It also contains two functions: to_char and to_timestamp.
to_char - convert time stamp to string
text to_char(timestamp, text)
to_timestamp - convert Unix epoch to time stamp
Great! I've verified 'mvn clean install'.
This is really necessary!
committed it to master branch. Thank you for the review.
FAILURE: Integrated in Tajo-trunk-postcommit #610 (See https://builds.apache.org/job/Tajo-trunk-postcommit/610/)
TAJO-62: Implement Timestamp Datum type. (hyunsik) (hyunsik: https://git-wip-us.apache.org/repos/asf?p=incubator-tajo.git&a=commit&h=ea5aa8f471c6a0cd8d97bb00eaaceabcdc50b666)