{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/83582706","pull_request_review_id":4416629,"id":83582706,"diff_hunk":"@@ -77,9 +77,40 @@ case class ProjectExec(projectList: Seq[NamedExpression], child: SparkPlan)\n     }\n   }\n \n-  override def outputOrdering: Seq[SortOrder] = child.outputOrdering\n+  override def outputOrdering: Seq[SortOrder] =\n+    ProjectHelper.outputOrdering(projectList, child.outputOrdering, child)\n }\n \n+object ProjectHelper {\n+  /**\n+   * Determins the outputOrdering property for [[ProjectExec]] and [[TakeOrderedAndProjectExec]]","path":"sql/core/src/main/scala/org/apache/spark/sql/execution/basicPhysicalOperators.scala","position":11,"original_position":11,"commit_id":"9e2eb1e15cbf305d7d4fb971e02ecfad948d4106","original_commit_id":"9e2eb1e15cbf305d7d4fb971e02ecfad948d4106","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars.githubusercontent.com/u/68855?v=3","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"body":"If the attribute `a is not existing in the output anymore, isn't sortorder('a) meaningless?","created_at":"2016-10-17T06:20:45Z","updated_at":"2016-10-17T06:20:45Z","html_url":"https://github.com/apache/spark/pull/15500#discussion_r83582706","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/15500","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/83582706"},"html":{"href":"https://github.com/apache/spark/pull/15500#discussion_r83582706"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/15500"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/15500","id":89493788,"html_url":"https://github.com/apache/spark/pull/15500","diff_url":"https://github.com/apache/spark/pull/15500.diff","patch_url":"https://github.com/apache/spark/pull/15500.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/15500","number":15500,"state":"open","locked":false,"title":"[SPARK-17956][SQL] Fix projection output ordering","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars.githubusercontent.com/u/68855?v=3","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"body":"## What changes were proposed in this pull request?\r\n\r\nCurrently `ProjectExec` simply takes child plan's `outputOrdering` as its `outputOrdering`. In some cases, this might lead to incorrect `outputOrdering`. This argument applies to `TakeOrderedAndProjectExec` too.\r\n\r\n\r\n## How was this patch tested?\r\n\r\nJenkins tests.\r\n\r\nPlease review https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark before opening a pull request.\r\n\r\n","created_at":"2016-10-15T13:48:03Z","updated_at":"2016-10-17T06:20:45Z","closed_at":null,"merged_at":null,"merge_commit_sha":"ea6f17b930a450cf1b1341f6075606fec02fd19c","assignee":null,"assignees":[],"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/15500/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/15500/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/15500/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/9e2eb1e15cbf305d7d4fb971e02ecfad948d4106","head":{"label":"viirya:project-sort-order","ref":"project-sort-order","sha":"9e2eb1e15cbf305d7d4fb971e02ecfad948d4106","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars.githubusercontent.com/u/68855?v=3","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"repo":{"id":21467907,"name":"spark-1","full_name":"viirya/spark-1","owner":{"login":"viirya","id":68855,"avatar_url":"https://avatars.githubusercontent.com/u/68855?v=3","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/viirya/spark-1","description":"Mirror 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