wangyum commented on code in PR #41809:
URL: https://github.com/apache/spark/pull/41809#discussion_r1248337358
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -3364,7 +3364,12 @@ class Analyzer(override val catalogManager:
CatalogManager) extends RuleExecutor
leftKeys.map(_.withNullability(true)))
case FullOuter =>
// in full outer join, joinCols should be non-null if there is.
Review Comment:
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