[HIVE-4604] Cleanup column type dependencies in vectorization aggregate code

• Type: Sub-task
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: vectorization-branch
• Component/s: Query Processor
• Assignee: Remus Rusanu
• Reporter: Remus Rusanu
• Created: 24/May/13 07:41
• Updated: 24/May/13 07:41

Description

The vectorized aggregates code is sprinckled with checks of the primitive types (int, bigin, long, double, string etc), eg:

VectorHashKeyWrapperBatch.compileKeyWrapperBatch
VectorizedRowBatch.createObjectInspector
VectorizationContext.mapObjectInspectors
VectorizationContext.columnTypes
VectorizationContext.allocateColumnVector
more?

This is unmaintainable. We need to centralize and abstract all these type checks into a single place.