2010YOUY01 commented on code in PR #18644:
URL: https://github.com/apache/datafusion/pull/18644#discussion_r2525559543
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datafusion/physical-plan/src/aggregates/mod.rs:
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@@ -418,6 +504,13 @@ pub struct AggregateExec {
/// Describes how the input is ordered relative to the group by columns
input_order_mode: InputOrderMode,
cache: PlanProperties,
+ /// During initialization, if the plan supports dynamic filtering (see
[`AggrDynFilter`]),
+ /// it is set to `Some(..)` regardless of whether it can be pushed down to
a child node.
+ ///
+ /// During filter pushdown optimization, if a child node can accept this
filter,
+ /// it remains `Some(..)` to enable dynamic filtering during aggregate
execution;
+ /// otherwise, it is cleared to `None`.
Review Comment:
I agree. Also, what's the current semantics? Is `Yes` map to either `Exact`
or `InExact`?
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