[HIVE-12025] refactor bucketId generating code

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.1
• Fix Version/s: 1.3.0
• Component/s: Query Processor
• Assignee: Eugene Koifman
• Reporter: Eugene Koifman
• Created: 02/Oct/15 19:41
• Updated: 10/Oct/15 18:33
• Resolved: 10/Oct/15 18:33

Description

HIVE-11983 adds ObjectInspectorUtils.getBucketHashCode() and getBucketNumber().

There are several (at least) places in Hive that perform this computation:

1. ReduceSinkOperator.computeBucketNumber
2. ReduceSinkOperator.computeHashCode
3. BucketIdResolverImpl - only in 2.0.0 ASF line
4. FileSinkOperator.findWriterOffset
5. GenericUDFHash

Should refactor it and make sure they all call methods from ObjectInspectorUtils.

Issue Links

• is blocked by: HIVE-11983 Hive streaming API uses incorrect logic to assign buckets to incoming records