cloud-fan commented on a change in pull request #29342: URL: https://github.com/apache/spark/pull/29342#discussion_r469074981
########## File path: sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala ########## @@ -66,6 +66,23 @@ private[execution] sealed trait HashedRelation extends KnownSizeEstimation { throw new UnsupportedOperationException } + /** + * Returns key index and matched rows. + * + * Returns null if there is no matched rows. + */ + def getWithKeyIndex(key: InternalRow): (Int, Iterator[InternalRow]) + + /** + * Returns an iterator for keys index and rows of InternalRow type. + */ + def valuesWithKeyIndex(): Iterator[(Int, InternalRow)] Review comment: I'm a bit worried about creating `Tuple2` objects frequently. Maybe we can add a ``` class ValueRowWithKeyIndex { var keyIndex: Int var value: InternalRow } ``` So that we can reuse the instance. ---------------------------------------------------------------- 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. 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