maropu commented on a change in pull request #30957:
URL: https://github.com/apache/spark/pull/30957#discussion_r573821798
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/BaseScriptTransformationExec.scala
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@@ -47,7 +47,13 @@ trait BaseScriptTransformationExec extends UnaryExecNode {
def ioschema: ScriptTransformationIOSchema
protected lazy val inputExpressionsWithoutSerde: Seq[Expression] = {
- input.map(Cast(_, StringType).withTimeZone(conf.sessionLocalTimeZone))
+ input.map { in =>
+ in.dataType match {
+ case _: ArrayType | _: MapType | _: StructType =>
+ new StructsToJson(in).withTimeZone(conf.sessionLocalTimeZone)
Review comment:
hm. Actually, this feature is not relevant to users using pre-built
spark (w/ `-Phive` enabled)? IIUC there is no way to use this feature when
enabling `-Phive`. I'm not sure about how important this feature is, but I
think we need to document it somewhere if we will merge it.
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