refactor(hash-aggr): Migrate partial-reduce hash aggregation#23233
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2010YOUY01 wants to merge 1 commit into
Open
refactor(hash-aggr): Migrate partial-reduce hash aggregation#232332010YOUY01 wants to merge 1 commit into
2010YOUY01 wants to merge 1 commit into
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Which issue does this PR close?
Rationale for this change
Part of #22710
This PRs implements the partial-reduce aggregation.
Comments at datafusion/physical-plan/src/aggregates/partial_reduce_stream.rs explains the high-level idea.
What changes are included in this PR?
AggregateHashTable<PartialReduceMarker>variant to handle partial-reduce aggregation.PartialReduceHashAggregateStreamto implement the partial-reduce state machine.Are these changes tested?
Covered by existing tests
Are there any user-facing changes?
No