[HIVE-7359] Stats based compute query replies fail to do simple column transforms

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0, 0.13.1, 0.14.0
• Fix Version/s: 0.14.0
• Component/s: Logical Optimizer
• Assignee: Ashutosh Chauhan
• Reporter: Gopal Vijayaraghavan
• Created: 07/Jul/14 22:42
• Updated: 13/Nov/14 19:41
• Resolved: 19/Sep/14 15:10

Description

The following two queries return the same answer (the second one is incorrect)

hive> set hive.compute.query.using.stats=true;

hive> select count(1) from trips;
OK
187271461
Time taken: 0.173 seconds, Fetched: 1 row(s)

hive> select count(1)/5109828 from trips;
OK
187271461
Time taken: 0.125 seconds, Fetched: 1 row(s)

The second query should have output 36.649 instead of the returning the value of count(1).

Issue Links

• links to: RB link