In the current implementation, boolean datum is not compatible to apache hive.
hive> select * from bool_test;
NotEval incurs NPE with boolean column
SUCCESS: Integrated in Tajo-trunk-postcommit #530 (See https://builds.apache.org/job/Tajo-trunk-postcommit/530/)
TAJO-270: Boolean datum compatible to apache hive. (jinho) (jinossy: https://git-wip-us.apache.org/repos/asf?p=incubator-tajo.git&a=commit&h=85cff2e7101e6e059285a80268ba2d8aaaca00ec)
Committed to master and branch-0.2.
I forgot to throw +1.
The patch looks great for me. I've verified 'mvn clean install'.
I've changed text comparison to use first byte instead of 'equals'
and the boolean text is written as 'true' or 'false'