[HIVE-4931] MAX/MIN aggregates yield incorrect results

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: vectorization-branch
• Fix Version/s: vectorization-branch, 0.13.0
• Component/s: Query Processor
• Assignee: Remus Rusanu
• Reporter: Remus Rusanu
• Created: 25/Jul/13 06:37
• Updated: 23/Oct/13 21:59
• Resolved: 31/Jul/13 01:55

Description

With the dataset attached by Tony, running:

select max(ctinyint), max(csmallint), max(cint), max(cbigint), max(cfloat), max(cdouble) from alltypes_orc;

this is the result in rowmode:
OK
62 16379 1073737829 2146661184 62.0 16376.0

This is the result in vector mode:
OK
1 16379 1071926788 -106115134 62.0 16361.0