viirya commented on a change in pull request #28556:
URL: https://github.com/apache/spark/pull/28556#discussion_r438425121
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/NestedColumnAliasing.scala
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@@ -215,21 +221,14 @@ object GeneratorNestedColumnAliasing {
NestedColumnAliasing.getAliasSubMap(
g.generator.children, g.requiredChildOutput).map {
case (nestedFieldToAlias, attrToAliases) =>
- pruneGenerate(g, nestedFieldToAlias, attrToAliases)
+ // Defer updating `Generate.unrequiredChildIndex` to next round of
`ColumnPruning`.
+ NestedColumnAliasing.replaceWithAliases(g, nestedFieldToAlias,
attrToAliases)
}
case _ =>
None
}
- private def pruneGenerate(
- g: Generate,
- nestedFieldToAlias: Map[ExtractValue, Alias],
- attrToAliases: Map[ExprId, Seq[Alias]]): LogicalPlan = {
- // Defer updating `Generate.unrequiredChildIndex` to next round of
`ColumnPruning`.
- NestedColumnAliasing.replaceChildrenWithAliases(g, nestedFieldToAlias,
attrToAliases)
- }
-
Review comment:
Addressed the comment
https://github.com/apache/spark/pull/28560/files#r437968812. @HyukjinKwon
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