HyukjinKwon commented on a change in pull request #28556:
URL: https://github.com/apache/spark/pull/28556#discussion_r439245169
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/NestedColumnAliasing.scala
##########
@@ -34,7 +34,8 @@ object NestedColumnAliasing {
: Option[(Map[ExtractValue, Alias], Map[ExprId, Seq[Alias]])] = plan match
{
case Project(projectList, child)
if SQLConf.get.nestedSchemaPruningEnabled &&
canProjectPushThrough(child) =>
- getAliasSubMap(projectList)
+ val exprCandidatesToPrune = projectList ++ child.expressions
+ getAliasSubMap(exprCandidatesToPrune, child.producedAttributes.toSeq)
case plan if SQLConf.get.nestedSchemaPruningEnabled && canPruneOn(plan) =>
Review comment:
No big deal but I would rename `plan` to `p` to avoid shadowing the
`plan` var. At least my IDE complains on that.
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/NestedColumnAliasing.scala
##########
@@ -34,7 +34,8 @@ object NestedColumnAliasing {
: Option[(Map[ExtractValue, Alias], Map[ExprId, Seq[Alias]])] = plan match
{
case Project(projectList, child)
if SQLConf.get.nestedSchemaPruningEnabled &&
canProjectPushThrough(child) =>
- getAliasSubMap(projectList)
+ val exprCandidatesToPrune = projectList ++ child.expressions
+ getAliasSubMap(exprCandidatesToPrune, child.producedAttributes.toSeq)
case plan if SQLConf.get.nestedSchemaPruningEnabled && canPruneOn(plan) =>
Review comment:
No big deal but I would rename `plan` to `p` to avoid shadowing the
`plan` argument. At least my IDE complains on that.
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