Replace supports_bounded_execution with supports_retract_batch #13
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alamb
reviewed
Jun 15, 2023
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I would like to propose we merge apache#6671 and then apply this change as its own PR as I think they are independent. |
…window functions (apache#6671) * feat: support sliding window accumulators Rationale: The default implementation of the `Accumulator` trait returns an error for the `retract_batch` API. * Allow AggregateUDF to define retractable batch * Return error rather than wrong results when aggregate without retract_batch is used as a sliding accumulator --------- Co-authored-by: Stuart Carnie <stuart.carnie@gmail.com>
# Conflicts: # datafusion/core/src/physical_plan/udaf.rs # datafusion/core/src/physical_plan/windows/mod.rs # datafusion/core/tests/user_defined_aggregates.rs
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Which issue does this PR close?
Closes #.
Rationale for this change
With the changes in the target PR,
supports_retract_batchmethod is introduced to theAccumulatortrait. With the introduction ofsupports_retract_batchmethod,supports_bounded_executionmethod is no longer necessary for theAggregateExprtrait. (Similar to the case we have movesupports_bounded_executiontrait fromBuiltinWindowFunctionExprtoPartitionEvalautortrait.)This PR removes
supports_bounded_executionmethod fromAggregateExprand moves its functionality tosupports_retract_batchmethod in the Accumulator` trait for existing accumulators.What changes are included in this PR?
Are these changes tested?
Are there any user-facing changes?