cloud-fan commented on code in PR #48748:
URL: https://github.com/apache/spark/pull/48748#discussion_r1840320598
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -2216,21 +2216,25 @@ class Analyzer(override val catalogManager:
CatalogManager) extends RuleExecutor
numArgs: Int,
u: UnresolvedFunction): Expression = {
func match {
- case owg: SupportsOrderingWithinGroup if u.isDistinct =>
+ case owg: InverseDistributionFunction if u.isDistinct =>
throw
QueryCompilationErrors.distinctInverseDistributionFunctionUnsupportedError(
owg.prettyName)
- case owg: SupportsOrderingWithinGroup
+ case owg: InverseDistributionFunction
if !owg.orderingFilled && u.orderingWithinGroup.isEmpty =>
Review Comment:
It seems to be the only check that we should relax for `ListAgg`. Should we
just add a new flag to `SupportsOrderingWithinGroup` to allow empty ordering,
instead of adding a new trait `InverseDistributionFunction`?
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