Balazs Hevele created IMPALA-14851:
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Summary: Codegen tuple copy for Grouping Aggregator
Key: IMPALA-14851
URL: https://issues.apache.org/jira/browse/IMPALA-14851
Project: IMPALA
Issue Type: Sub-task
Components: Backend
Reporter: Balazs Hevele
Assignee: Balazs Hevele
Add codegen for tuple deepcopy in GroupingAggregator.
There are two places where it uses tuple copy:
1. When spilling, it uses a BufferedTupleStream
2. When encountering a new group, see GroupingAggregator::CopyGroupingValues
If possible, use common deepcopy functions with other systems (e.g.
Tuple::TryDeepCopy*).
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