{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/62100913","id":62100913,"diff_hunk":"@@ -57,7 +60,7 @@ case class CreateDatabase(\n       CatalogDatabase(\n         databaseName,\n         comment.getOrElse(\"\"),\n-        path.getOrElse(catalog.getDefaultDBPath(databaseName)),\n+        catalog.createDatabasePath(databaseName, path),","path":"sql/core/src/main/scala/org/apache/spark/sql/execution/command/ddl.scala","position":17,"original_position":17,"commit_id":"838eaeb47e4d129bf0e93351fd5e6e4db25a2ace","original_commit_id":"838eaeb47e4d129bf0e93351fd5e6e4db25a2ace","user":{"login":"yhuai","id":2072857,"avatar_url":"https://avatars.githubusercontent.com/u/2072857?v=3","gravatar_id":"","url":"https://api.github.com/users/yhuai","html_url":"https://github.com/yhuai","followers_url":"https://api.github.com/users/yhuai/followers","following_url":"https://api.github.com/users/yhuai/following{/other_user}","gists_url":"https://api.github.com/users/yhuai/gists{/gist_id}","starred_url":"https://api.github.com/users/yhuai/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yhuai/subscriptions","organizations_url":"https://api.github.com/users/yhuai/orgs","repos_url":"https://api.github.com/users/yhuai/repos","events_url":"https://api.github.com/users/yhuai/events{/privacy}","received_events_url":"https://api.github.com/users/yhuai/received_events","type":"User","site_admin":false},"body":"oh, we have `defaultTablePath` in SessionCatalog. Let's use `defaultDatabasePath` as the better. What do you think?","created_at":"2016-05-04T19:38:22Z","updated_at":"2016-05-04T19:38:22Z","html_url":"https://github.com/apache/spark/pull/12081#discussion_r62100913","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/12081","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/62100913"},"html":{"href":"https://github.com/apache/spark/pull/12081#discussion_r62100913"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/12081"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/12081","id":64743242,"html_url":"https://github.com/apache/spark/pull/12081","diff_url":"https://github.com/apache/spark/pull/12081.diff","patch_url":"https://github.com/apache/spark/pull/12081.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/12081","number":12081,"state":"open","locked":false,"title":"[SPARK-14124] [SQL] [FOLLOWUP] Implement Database-related DDL Commands ","user":{"login":"gatorsmile","id":11567269,"avatar_url":"https://avatars.githubusercontent.com/u/11567269?v=3","gravatar_id":"","url":"https://api.github.com/users/gatorsmile","html_url":"https://github.com/gatorsmile","followers_url":"https://api.github.com/users/gatorsmile/followers","following_url":"https://api.github.com/users/gatorsmile/following{/other_user}","gists_url":"https://api.github.com/users/gatorsmile/gists{/gist_id}","starred_url":"https://api.github.com/users/gatorsmile/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gatorsmile/subscriptions","organizations_url":"https://api.github.com/users/gatorsmile/orgs","repos_url":"https://api.github.com/users/gatorsmile/repos","events_url":"https://api.github.com/users/gatorsmile/events{/privacy}","received_events_url":"https://api.github.com/users/gatorsmile/received_events","type":"User","site_admin":false},"body":"#### What changes were proposed in this pull request?\r\n\r\nFirst, this PR will issue an exception when location is not specified and `spark.sql.warehouse.dir` is blank.\r\n\r\nSecond, the property value of `java.io.tmpdir` does not include a trailing slash on some platform. Hive always removes the last trailing slash. For example, what I got in the web:\r\n```\r\nWin NT  --> C:\\TEMP\\\r\nWin XP  --> C:\\TEMP\r\nSolaris --> /var/tmp/\r\nLinux   --> /var/tmp\r\n```\r\n\r\nThird, a couple of test cases are added to verify if the commands work properly.\r\n\r\ncc @yhuai @andrewor14 Sorry, I did not catch this issue when submitting the PR. Could you review this follow-up?\r\n\r\n#### How was this patch tested?\r\nAdded a test case for it and correct the previous test cases.","created_at":"2016-03-31T06:58:53Z","updated_at":"2016-05-04T19:38:22Z","closed_at":null,"merged_at":null,"merge_commit_sha":"acd99a5048a20184a7b9a60c2af942b118159102","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/12081/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/12081/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/12081/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/838eaeb47e4d129bf0e93351fd5e6e4db25a2ace","head":{"label":"gatorsmile:mkdir","ref":"mkdir","sha":"838eaeb47e4d129bf0e93351fd5e6e4db25a2ace","user":{"login":"gatorsmile","id":11567269,"avatar_url":"https://avatars.githubusercontent.com/u/11567269?v=3","gravatar_id":"","url":"https://api.github.com/users/gatorsmile","html_url":"https://github.com/gatorsmile","followers_url":"https://api.github.com/users/gatorsmile/followers","following_url":"https://api.github.com/users/gatorsmile/following{/other_user}","gists_url":"https://api.github.com/users/gatorsmile/gists{/gist_id}","starred_url":"https://api.github.com/users/gatorsmile/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gatorsmile/subscriptions","organizations_url":"https://api.github.com/users/gatorsmile/orgs","repos_url":"https://api.github.com/users/gatorsmile/repos","events_url":"https://api.github.com/users/gatorsmile/events{/privacy}","received_events_url":"https://api.github.com/users/gatorsmile/received_events","type":"User","site_admin":false},"repo":{"id":44710950,"name":"spark","full_name":"gatorsmile/spark","owner":{"login":"gatorsmile","id":11567269,"avatar_url":"https://avatars.githubusercontent.com/u/11567269?v=3","gravatar_id":"","url":"https://api.github.com/users/gatorsmile","html_url":"https://github.com/gatorsmile","followers_url":"https://api.github.com/users/gatorsmile/followers","following_url":"https://api.github.com/users/gatorsmile/following{/other_user}","gists_url":"https://api.github.com/users/gatorsmile/gists{/gist_id}","starred_url":"https://api.github.com/users/gatorsmile/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gatorsmile/subscriptions","organizations_url":"https://api.github.com/users/gatorsmile/orgs","repos_url":"https://api.github.com/users/gatorsmile/repos","events_url":"https://api.github.com/users/gatorsmile/events{/privacy}","received_events_url":"https://api.github.com/users/gatorsmile/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/gatorsmile/spark","description":"Mirror 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