viirya commented on a change in pull request #24599: [SPARK-27701][SQL] Extend
NestedColumnAliasing to general nested field cases including GetArrayStructField
URL: https://github.com/apache/spark/pull/24599#discussion_r292235857
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/NestedColumnAliasing.scala
##########
@@ -31,7 +31,7 @@ import org.apache.spark.sql.types._
object NestedColumnAliasing {
def unapply(plan: LogicalPlan)
- : Option[(Map[GetStructField, Alias], Map[ExprId, Seq[Alias]])] = plan
match {
+ : Option[(Map[ExtractValue, Alias], Map[ExprId, Seq[Alias]])] = plan match
{
case Project(projectList, child)
if SQLConf.get.nestedSchemaPruningEnabled &&
canProjectPushThrough(child) =>
Review comment:
Oh, I see. Then I will change the default value to `true` and see if all
tests can pass. Before merging, we can revert it back.
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