WweiL commented on code in PR #45888:
URL: https://github.com/apache/spark/pull/45888#discussion_r1556983746
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/ResolveTimeWindows.scala:
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@@ -93,17 +93,38 @@ object TimeWindowing extends Rule[LogicalPlan] {
}
}
+ // scalastyle:off
+ println("wei-== resolveTimeWindows, window: " + window)
+ println("wei-== resolveTimeWindows, window.timeColumn: " +
window.timeColumn)
+ println("wei-== resolveTimeWindows, window.timeColumn.dataType: " +
window.timeColumn.dataType)
+ println("wei-== resolveTimeWindows, window.timeColumn class: " +
window.timeColumn.getClass)
+// println("wei-== resolveTimeWindows, window.timeColumn child: " +
window.timeColumn.child)
+// println("wei-== resolveTimeWindows, window.timeColumn output
metadata: " + window.timeColumn.output.map(_.metadata))
+
+
val metadata = window.timeColumn match {
case a: Attribute => a.metadata
+// case e: Cast => println("wei== Cast child: " + e.child + " child
type: " + e.child.getClass); Metadata.empty
case _ => Metadata.empty
}
- val newMetadata = new MetadataBuilder()
+
+ val newMetadataBuilder = new MetadataBuilder()
.withMetadata(metadata)
.putBoolean(TimeWindow.marker, true)
- .build()
+
+ // for each child output metadata, also add it here
+ child.output.map(_.metadata).foreach { m =>
+ newMetadataBuilder.withMetadata(m)
+ }
Review Comment:
looks like a hack now
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