cloud-fan commented on a change in pull request #30943:
URL: https://github.com/apache/spark/pull/30943#discussion_r549937413
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
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@@ -2123,19 +2123,58 @@ class Analyzer(override val catalogManager:
CatalogManager)
if (isDistinct || filter.isDefined) {
throw
QueryCompilationErrors.distinctOrFilterOnlyWithAggregateFunctionError(
wf.prettyName)
+ } else if (ignoreNulls) {
+ wf match {
+ case nthValue: NthValue =>
+ nthValue.copy(ignoreNulls = ignoreNulls)
+ case _ =>
+ throw
QueryCompilationErrors.ignoreNullsWithUnsupportedFunctionError(
+ wf.prettyName)
+ }
} else {
wf
}
+ case owf: FrameLessOffsetWindowFunction =>
+ if (isDistinct || filter.isDefined) {
+ throw
QueryCompilationErrors.distinctOrFilterOnlyWithAggregateFunctionError(
+ owf.prettyName)
+ } else if (ignoreNulls) {
+ owf match {
+ case lead: Lead =>
+ lead.copy(ignoreNulls = ignoreNulls)
+ case lag: Lag =>
+ lag.copy(ignoreNulls = ignoreNulls)
Review comment:
we need to add a catch-all case at the end.
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