{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/168365935","pull_request_review_id":96720072,"id":168365935,"diff_hunk":"@@ -1004,6 +1004,29 @@ Configuration of Parquet can be done using the `setConf` method on `SparkSession\n </tr>\n </table>\n \n+## ORC Files\n+\n+Since Spark 2.3, Spark supports a vectorized ORC reader with a new ORC file format for ORC files.\n+To do that, the following configurations are newly added. The vectorized reader is used for the\n+native ORC tables (e.g., the ones created using the clause `USING ORC`) when `spark.sql.orc.impl`\n+is set to `native` and `spark.sql.orc.enableVectorizedReader` is set to `true`. For the Hive ORC\n+serde tables (e.g., the ones created using the clause `USING HIVE OPTIONS (fileFormat 'ORC')`),\n+the vectorized reader is used when `spark.sql.hive.convertMetastoreOrc` is set to `true`.","path":"docs/sql-programming-guide.md","position":11,"original_position":11,"commit_id":"276963369b663c99aebcde10f4329f479f43b3ea","original_commit_id":"276963369b663c99aebcde10f4329f479f43b3ea","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars1.githubusercontent.com/u/68855?v=4","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":"when `spark.sql.hive.convertMetastoreOrc` is (also )set to `true`?","created_at":"2018-02-15T01:58:10Z","updated_at":"2018-02-15T01:58:10Z","html_url":"https://github.com/apache/spark/pull/20610#discussion_r168365935","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/20610","author_association":"CONTRIBUTOR","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/168365935"},"html":{"href":"https://github.com/apache/spark/pull/20610#discussion_r168365935"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/20610"}},"in_reply_to_id":168360639},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/20610","id":169186581,"html_url":"https://github.com/apache/spark/pull/20610","diff_url":"https://github.com/apache/spark/pull/20610.diff","patch_url":"https://github.com/apache/spark/pull/20610.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/20610","number":20610,"state":"open","locked":false,"title":"[SPARK-23426][SQL] Use `hive` ORC impl and disable PPD for Spark 2.3.0","user":{"login":"dongjoon-hyun","id":9700541,"avatar_url":"https://avatars2.githubusercontent.com/u/9700541?v=4","gravatar_id":"","url":"https://api.github.com/users/dongjoon-hyun","html_url":"https://github.com/dongjoon-hyun","followers_url":"https://api.github.com/users/dongjoon-hyun/followers","following_url":"https://api.github.com/users/dongjoon-hyun/following{/other_user}","gists_url":"https://api.github.com/users/dongjoon-hyun/gists{/gist_id}","starred_url":"https://api.github.com/users/dongjoon-hyun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongjoon-hyun/subscriptions","organizations_url":"https://api.github.com/users/dongjoon-hyun/orgs","repos_url":"https://api.github.com/users/dongjoon-hyun/repos","events_url":"https://api.github.com/users/dongjoon-hyun/events{/privacy}","received_events_url":"https://api.github.com/users/dongjoon-hyun/received_events","type":"User","site_admin":false},"body":"## What changes were proposed in this pull request?\r\n\r\nTo prevent any regressions, this PR changes ORC implementation to `hive` by default like Spark 2.2.X.\r\nUsers can enable `native` ORC. Also, ORC PPD is also restored to `false` like Spark 2.2.X.\r\n\r\n![orc_section](https://user-images.githubusercontent.com/9700541/36221575-57a1d702-1173-11e8-89fe-dca5842f4ca7.png)\r\n\r\n## How was this patch tested?\r\n\r\nPass all test cases.","created_at":"2018-02-14T18:26:28Z","updated_at":"2018-02-15T01:58:10Z","closed_at":null,"merged_at":null,"merge_commit_sha":"a6321a9b0b3510ee87e7d0abd8f3d503cfeef272","assignee":null,"assignees":[],"requested_reviewers":[],"requested_teams":[],"labels":[],"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/20610/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/20610/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/20610/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/276963369b663c99aebcde10f4329f479f43b3ea","head":{"label":"dongjoon-hyun:SPARK-ORC-DISABLE","ref":"SPARK-ORC-DISABLE","sha":"276963369b663c99aebcde10f4329f479f43b3ea","user":{"login":"dongjoon-hyun","id":9700541,"avatar_url":"https://avatars2.githubusercontent.com/u/9700541?v=4","gravatar_id":"","url":"https://api.github.com/users/dongjoon-hyun","html_url":"https://github.com/dongjoon-hyun","followers_url":"https://api.github.com/users/dongjoon-hyun/followers","following_url":"https://api.github.com/users/dongjoon-hyun/following{/other_user}","gists_url":"https://api.github.com/users/dongjoon-hyun/gists{/gist_id}","starred_url":"https://api.github.com/users/dongjoon-hyun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongjoon-hyun/subscriptions","organizations_url":"https://api.github.com/users/dongjoon-hyun/orgs","repos_url":"https://api.github.com/users/dongjoon-hyun/repos","events_url":"https://api.github.com/users/dongjoon-hyun/events{/privacy}","received_events_url":"https://api.github.com/users/dongjoon-hyun/received_events","type":"User","site_admin":false},"repo":{"id":28900400,"name":"spark","full_name":"dongjoon-hyun/spark","owner":{"login":"dongjoon-hyun","id":9700541,"avatar_url":"https://avatars2.githubusercontent.com/u/9700541?v=4","gravatar_id":"","url":"https://api.github.com/users/dongjoon-hyun","html_url":"https://github.com/dongjoon-hyun","followers_url":"https://api.github.com/users/dongjoon-hyun/followers","following_url":"https://api.github.com/users/dongjoon-hyun/following{/other_user}","gists_url":"https://api.github.com/users/dongjoon-hyun/gists{/gist_id}","starred_url":"https://api.github.com/users/dongjoon-hyun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongjoon-hyun/subscriptions","organizations_url":"https://api.github.com/users/dongjoon-hyun/orgs","repos_url":"https://api.github.com/users/dongjoon-hyun/repos","events_url":"https://api.github.com/users/dongjoon-hyun/events{/privacy}","received_events_url":"https://api.github.com/users/dongjoon-hyun/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/dongjoon-hyun/spark","description":"Mirror 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