[GitHub] spark pull request #17392: [SPARK-20008] [SQL] DISTINCT and EXCEPT Support o...
Github user gatorsmile closed the pull request at: https://github.com/apache/spark/pull/17392 --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] spark pull request #17392: [SPARK-20008] [SQL] DISTINCT and EXCEPT Support o...
Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/17392#discussion_r107569402 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/ObjectHashAggregateExec.scala --- @@ -147,9 +147,13 @@ case class ObjectHashAggregateExec( object ObjectHashAggregateExec { def supportsAggregate(aggregateExpressions: Seq[AggregateExpression]): Boolean = { -aggregateExpressions.map(_.aggregateFunction).exists { - case _: TypedImperativeAggregate[_] => true - case _ => false +if (aggregateExpressions.isEmpty) { + false --- End diff -- not needed. --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
[GitHub] spark pull request #17392: [SPARK-20008] [SQL] DISTINCT and EXCEPT Support o...
GitHub user gatorsmile opened a pull request: https://github.com/apache/spark/pull/17392 [SPARK-20008] [SQL] DISTINCT and EXCEPT Support on DataFrame with Zero Columns ### What changes were proposed in this pull request? So far, our aggregate does not consider the input with zero column. This PR is to fix the issue. After the fix, both `DISTINCT` and `EXCEPT` can correctly behave when the DataFrame has zero column. ### How was this patch tested? Added test cases to check both in different scenarios. You can merge this pull request into a Git repository by running: $ git pull https://github.com/gatorsmile/spark emptyDF Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/17392.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #17392 commit c0c821f9056debf9385708d0cc0a0517261a5b7b Author: Xiao LiDate: 2017-03-23T00:04:48Z fix. --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org