maropu commented on a change in pull request #32059:
URL: https://github.com/apache/spark/pull/32059#discussion_r608270127
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/ProjectionOverSchema.scala
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@@ -41,9 +43,10 @@ case class ProjectionOverSchema(schema: StructType) {
case a: GetArrayStructFields =>
getProjection(a.child).map(p => (p, p.dataType)).map {
case (projection, ArrayType(projSchema @ StructType(_), _)) =>
+ val selectedField = projSchema.find(f => resolver(f.name,
a.field.name)).get
Review comment:
This issue can occur only in an array of structs? The code at line 66
(@dongjoon-hyun pointed out above) has the same pattern
`projSchema.fieldIndex(field.name)`, so I'm worried that is can occur in other
cases.
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