adriangb commented on code in PR #15769:
URL: https://github.com/apache/datafusion/pull/15769#discussion_r2074216845
##########
datafusion/physical-optimizer/src/optimizer.rs:
##########
@@ -95,6 +95,10 @@ impl PhysicalOptimizer {
// as that rule may inject other operations in between the
different AggregateExecs.
// Applying the rule early means only directly-connected
AggregateExecs must be examined.
Arc::new(LimitedDistinctAggregation::new()),
+ // The FilterPushdown rule tries to push down filters as far as it
can.
+ // For example, it will push down filtering from a `FilterExec` to
+ // a `DataSourceExec`, or from a `TopK`'s current state to a
`DataSourceExec`.
+ Arc::new(FilterPushdown::new()),
Review Comment:
I guess the only logical solution is to place `FilterPushdown` at the end
and remove any unnecessary repartitions?
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