SubhamSinghal commented on code in PR #21479:
URL: https://github.com/apache/datafusion/pull/21479#discussion_r3058532937
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datafusion/common/src/config.rs:
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@@ -1087,6 +1087,12 @@ config_namespace! {
/// past window functions, if possible
pub enable_window_limits: bool, default = true
+ /// When set to true, the optimizer will replace
+ /// Filter(rn<=K) → Window(ROW_NUMBER) → Sort patterns with a
+ /// PartitionedTopKExec that maintains per-partition heaps, avoiding
+ /// a full sort of the input.
+ pub enable_window_topn: bool, default = true
Review Comment:
done.
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