[TAJO-570] InvalidOperationException in outer join with constant values

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.8.0
• Component/s: Planner/Optimizer
• Assignee: Hyunsik Choi
• Reporter: Hyunsik Choi
• Created: 29/Jan/14 07:44
• Updated: 30/Jan/14 17:07
• Resolved: 30/Jan/14 17:06

Description

select 
  a.name, 
  1::FLOAT, 
  max_id 
from table1 a
left outer join
 (select id, max(type) as max_id from table1 group by id) b
 on a.id = b.id

The above case causes the following error:

2014-01-29 14:37:35,419 ERROR worker.Task (Task.java:run(378)) - org.apache.tajo.datum.exception.InvalidOperationException: Cannot equivalent check: TEXT and INT4
        at org.apache.tajo.datum.TextDatum.equalsTo(TextDatum.java:137)
        at org.apache.tajo.engine.eval.BinaryEval.eval(BinaryEval.java:134)
        at org.apache.tajo.engine.planner.physical.HashLeftOuterJoinExec.next(HashLeftOuterJoinExec.java:144)
        at org.apache.tajo.engine.planner.physical.HashShuffleFileWriteExec.next(HashShuffleFileWriteExec.java:117)
        at org.apache.tajo.worker.Task.run(Task.java:370)
        at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:392)
        at java.lang.Thread.run(Thread.java:662)