[HIVE-13333] StatsOptimizer throws ClassCastException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.1.0
• Component/s: Logical Optimizer
• Assignee: Pengcheng Xiong
• Reporter: Ashutosh Chauhan
• Created: 23/Mar/16 00:34
• Updated: 21/Jun/16 15:43
• Resolved: 08/Apr/16 00:10

Description

mvn test -Dtest=TestCliDriver -Dtest.output.overwrite=true -Dqfile=cbo_rp_udf_udaf.q -Dhive.compute.query.using.stats=true repros the issue.

In StatsOptimizer with return path on, we may have aggr($f0), aggr($f1) in GBY
and then select aggr($f1), aggr($f0) in SEL.
Thus we need to use colExp to find out which position is
corresponding to which position.

Issue Links

• links to: RB