cloud-fan commented on code in PR #39870:
URL: https://github.com/apache/spark/pull/39870#discussion_r1098114726
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/execution/datasources/v2/DataSourceV2Relation.scala:
##########
@@ -54,15 +54,18 @@ case class DataSourceV2Relation(
override lazy val metadataOutput: Seq[AttributeReference] = table match {
case hasMeta: SupportsMetadataColumns =>
- val resolve = conf.resolver
- val outputNames = outputSet.map(_.name)
- def isOutputColumn(col: MetadataColumn): Boolean = {
- outputNames.exists(name => resolve(col.name, name))
+ getTagValue(CACHED_META_OUTPUT_TAG).getOrElse {
Review Comment:
I see, the problem here is we reference metadata col twice in two different
nodes. I think the issue is we add the extra project too early. We should only
do it once for the root node.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
