cloud-fan commented on code in PR #57602:
URL: https://github.com/apache/spark/pull/57602#discussion_r3702428511
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -4527,6 +4527,20 @@ object SQLConf {
"The threshold of window group limit must be -1, 0 or positive
integer.")
.createWithDefault(1000)
+ val BYPASS_PARTIAL_WINDOW_GROUP_LIMIT =
+ buildConf("spark.sql.execution.bypassPartialWindowGroupLimit")
Review Comment:
You can add this conf in your spark fork. This is not a feature rollout
conf, as we clearly can not bypass partial window group limit always.
We should either use query hint, or build a real optimization that only skip
partial window group limit when it's beneficial (e.g. stats-based decision, or
runtime adaptivity).
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