cloud-fan commented on a change in pull request #34575:
URL: https://github.com/apache/spark/pull/34575#discussion_r772199075
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileSourceStrategy.scala
##########
@@ -225,8 +238,18 @@ object FileSourceStrategy extends Strategy with
PredicateHelper with Logging {
dataFilters,
table.map(_.identifier))
+ // extra Project node: wrap flat metadata columns to a metadata struct
+ val withMetadataProjections = metadataStructOpt.map { metadataStruct =>
+ val metadataAlias =
+ Alias(CreateStruct(metadataColumns), METADATA_NAME)(exprId =
metadataStruct.exprId)
+ execution.ProjectExec(
+ scan.output.filterNot(metadataColumns.contains) :+ metadataAlias,
scan)
Review comment:
nit: `scan.output.dropRight(metadataColumns.length)`
--
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: reviews-unsubscr...@spark.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
