mihailoale-db commented on code in PR #52142:
URL: https://github.com/apache/spark/pull/52142#discussion_r2305309887
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala:
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@@ -148,7 +148,10 @@ trait ExtractValue extends Expression with QueryErrorsBase
{
case class GetStructField(child: Expression, ordinal: Int, name:
Option[String] = None)
extends UnaryExpression with ExtractValue {
- lazy val childSchema = child.dataType.asInstanceOf[StructType]
+ lazy val childSchema = child.dataType match {
Review Comment:
Are we sure that this is a error message improvement and not an actual bug
in the analyzer? It might be that somehow we don't apply type coercion
correctly or similar, right?
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