{"action":"created","issue":{"url":"https://api.github.com/repos/apache/spark/issues/15835","repository_url":"https://api.github.com/repos/apache/spark","labels_url":"https://api.github.com/repos/apache/spark/issues/15835/labels{/name}","comments_url":"https://api.github.com/repos/apache/spark/issues/15835/comments","events_url":"https://api.github.com/repos/apache/spark/issues/15835/events","html_url":"https://github.com/apache/spark/pull/15835","id":188355700,"number":15835,"title":"[SPARK-17059][SQL] Allow FileFormat to specify partition pruning strategy via splits","user":{"login":"pwoody","id":11271328,"avatar_url":"https://avatars.githubusercontent.com/u/11271328?v=3","gravatar_id":"","url":"https://api.github.com/users/pwoody","html_url":"https://github.com/pwoody","followers_url":"https://api.github.com/users/pwoody/followers","following_url":"https://api.github.com/users/pwoody/following{/other_user}","gists_url":"https://api.github.com/users/pwoody/gists{/gist_id}","starred_url":"https://api.github.com/users/pwoody/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pwoody/subscriptions","organizations_url":"https://api.github.com/users/pwoody/orgs","repos_url":"https://api.github.com/users/pwoody/repos","events_url":"https://api.github.com/users/pwoody/events{/privacy}","received_events_url":"https://api.github.com/users/pwoody/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-11-09T21:22:22Z","updated_at":"2016-11-09T22:24:38Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/15835","html_url":"https://github.com/apache/spark/pull/15835","diff_url":"https://github.com/apache/spark/pull/15835.diff","patch_url":"https://github.com/apache/spark/pull/15835.patch"},"body":"## What changes were proposed in this pull request?\r\n\r\nThis is a follow up to changes in #14649 to meet the new codebase changes. It is slightly different in that it will not filter files explicitly, but it allows a FileFormat to prune splits (if applicable). This is implemented in ParquetFileFormat and every other format maintains the same behavior.\r\n\r\n## How was this patch tested?\r\n\r\nPassing current tests and added two new tests to validate the pruning and ensure that excessive filtering does not occur on malformed metadata.\r\n\r\nThanks!\r\n"},"comment":{"url":"https://api.github.com/repos/apache/spark/issues/comments/259544408","html_url":"https://github.com/apache/spark/pull/15835#issuecomment-259544408","issue_url":"https://api.github.com/repos/apache/spark/issues/15835","id":259544408,"user":{"login":"pwoody","id":11271328,"avatar_url":"https://avatars.githubusercontent.com/u/11271328?v=3","gravatar_id":"","url":"https://api.github.com/users/pwoody","html_url":"https://github.com/pwoody","followers_url":"https://api.github.com/users/pwoody/followers","following_url":"https://api.github.com/users/pwoody/following{/other_user}","gists_url":"https://api.github.com/users/pwoody/gists{/gist_id}","starred_url":"https://api.github.com/users/pwoody/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pwoody/subscriptions","organizations_url":"https://api.github.com/users/pwoody/orgs","repos_url":"https://api.github.com/users/pwoody/repos","events_url":"https://api.github.com/users/pwoody/events{/privacy}","received_events_url":"https://api.github.com/users/pwoody/received_events","type":"User","site_admin":false},"created_at":"2016-11-09T22:24:38Z","updated_at":"2016-11-09T22:24:38Z","body":"There is a performance issue here in that we re-fetch the metadata file for each file. My understanding is that FileFormat is meant to be stateless, but if we can add in a cache then that would be very useful."}}
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