{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/17810","repository_url":"https://api.github.com/repos/apache/spark","labels_url":"https://api.github.com/repos/apache/spark/issues/17810/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/17810/comments","events_url":"https://api.github.com/repos/apache/spark/issues/17810/events","html_url":"https://github.com/apache/spark/pull/17810","id":225289171,"number":17810,"title":"[SPARK-20534][SQL] Make outer generate exec return empty rows","user":{"login":"hvanhovell","id":9616802,"avatar_url":"https://avatars1.githubusercontent.com/u/9616802?v=3","gravatar_id":"","url":"https://api.github.com/users/hvanhovell","html_url":"https://github.com/hvanhovell","followers_url":"https://api.github.com/users/hvanhovell/followers","following_url":"https://api.github.com/users/hvanhovell/following{/other_user}","gists_url":"https://api.github.com/users/hvanhovell/gists{/gist_id}","starred_url":"https://api.github.com/users/hvanhovell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hvanhovell/subscriptions","organizations_url":"https://api.github.com/users/hvanhovell/orgs","repos_url":"https://api.github.com/users/hvanhovell/repos","events_url":"https://api.github.com/users/hvanhovell/events{/privacy}","received_events_url":"https://api.github.com/users/hvanhovell/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2017-04-29T22:19:57Z","updated_at":"2017-04-30T17:42:37Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/17810","html_url":"https://github.com/apache/spark/pull/17810","diff_url":"https://github.com/apache/spark/pull/17810.diff","patch_url":"https://github.com/apache/spark/pull/17810.patch"},"body":"## What changes were proposed in this pull request?\r\nGenerate exec does not produce `null` values if the generator for the input row is empty and the generate operates in outer mode without join. This is caused by the fact that the `join=false` code path is different from the `join=true` code path, and that the `join=false` code path did deal with outer properly. This PR addresses this issue.\r\n\r\n## How was this patch tested?\r\nUpdated `outer*` tests in `GeneratorFunctionSuite`."},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/298245936","html_url":"https://github.com/apache/spark/pull/17810#issuecomment-298245936","issue_url":"https://api.github.com/repos/apache/spark/issues/17810","id":298245936,"user":{"login":"AmplabJenkins","id":4031291,"avatar_url":"https://avatars0.githubusercontent.com/u/4031291?v=3","gravatar_id":"","url":"https://api.github.com/users/AmplabJenkins","html_url":"https://github.com/AmplabJenkins","followers_url":"https://api.github.com/users/AmplabJenkins/followers","following_url":"https://api.github.com/users/AmplabJenkins/following{/other_user}","gists_url":"https://api.github.com/users/AmplabJenkins/gists{/gist_id}","starred_url":"https://api.github.com/users/AmplabJenkins/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/AmplabJenkins/subscriptions","organizations_url":"https://api.github.com/users/AmplabJenkins/orgs","repos_url":"https://api.github.com/users/AmplabJenkins/repos","events_url":"https://api.github.com/users/AmplabJenkins/events{/privacy}","received_events_url":"https://api.github.com/users/AmplabJenkins/received_events","type":"User","site_admin":false},"created_at":"2017-04-30T17:42:37Z","updated_at":"2017-04-30T17:42:37Z","body":"Merged build finished. Test PASSed."}}
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