[IMPALA-5192] Avoid hard coding pointer to the tuple pool into generated IR of Tuple::CodegenMaterializeExprs()

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 2.9.0
• Component/s: Backend
• Labels: codegen
• Epic Color: ghx-label-7
• Assignee: Michael Ho
• Reporter: Taras Bobrovytsky
• Created: 10/Apr/17 20:28
• Updated: 26/Apr/17 23:41
• Resolved: 26/Apr/17 23:41

Description

We currently require having a tuple pool that is attached to the exec node because Codegening Tuple::CodegenMaterializeExprs() requires having a pointer to the tuple pool at codegen time. It would be better if it was possible to use the tuple pool of the row batch.

This affects Union and TopN nodes (and maybe others).

Issue Links

• is part of: IMPALA-4080 Share codegen work between fragment instances