{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/73992751","id":73992751,"diff_hunk":"@@ -285,6 +290,9 @@ private[sql] case class PreWriteCheck(conf: SQLConf, catalog: SessionCatalog)\n \n   def apply(plan: LogicalPlan): Unit = {\n     plan.foreach {\n+      case CreateTable(tableDesc, _, Some(_))\n+          if tableDesc.provider.get == \"hive\" && sparkConf.get(CATALOG_IMPLEMENTATION) != \"hive\" =>","path":"sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/rules.scala","position":26,"original_position":26,"commit_id":"8a4d2b2128bec1526228156734e1d1b94bd01c7b","original_commit_id":"8a4d2b2128bec1526228156734e1d1b94bd01c7b","user":{"login":"cloud-fan","id":3182036,"avatar_url":"https://avatars.githubusercontent.com/u/3182036?v=3","gravatar_id":"","url":"https://api.github.com/users/cloud-fan","html_url":"https://github.com/cloud-fan","followers_url":"https://api.github.com/users/cloud-fan/followers","following_url":"https://api.github.com/users/cloud-fan/following{/other_user}","gists_url":"https://api.github.com/users/cloud-fan/gists{/gist_id}","starred_url":"https://api.github.com/users/cloud-fan/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cloud-fan/subscriptions","organizations_url":"https://api.github.com/users/cloud-fan/orgs","repos_url":"https://api.github.com/users/cloud-fan/repos","events_url":"https://api.github.com/users/cloud-fan/events{/privacy}","received_events_url":"https://api.github.com/users/cloud-fan/received_events","type":"User","site_admin":false},"body":"ah sorry I misread this PR. When Hive support is not enabled, we definitely need to throw exception for hive tables in CTAS.","created_at":"2016-08-09T03:19:20Z","updated_at":"2016-08-09T03:19:20Z","html_url":"https://github.com/apache/spark/pull/13886#discussion_r73992751","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/13886","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/73992751"},"html":{"href":"https://github.com/apache/spark/pull/13886#discussion_r73992751"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/13886"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/13886","id":75073617,"html_url":"https://github.com/apache/spark/pull/13886","diff_url":"https://github.com/apache/spark/pull/13886.diff","patch_url":"https://github.com/apache/spark/pull/13886.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/13886","number":13886,"state":"open","locked":false,"title":"[SPARK-16185] [SQL] Better Error Messages When Creating Table As Select Without Enabling Hive Support","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\nWhen we do not turn on the Hive Support, the following query generates a confusing error message:\r\n```Scala\r\nsql(\"CREATE TABLE t2 SELECT a, b from t1\")\r\n```\r\n\r\n```\r\nunresolved operator 'CreateHiveTableAsSelectLogicalPlan CatalogTable(\r\n\tTable: `t`\r\n\tCreated: Fri Jun 24 00:09:15 PDT 2016\r\n\tLast Access: Wed Dec 31 15:59:59 PST 1969\r\n\tType: MANAGED\r\n\tStorage(InputFormat: org.apache.hadoop.mapred.TextInputFormat, OutputFormat: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat)), false;\r\norg.apache.spark.sql.AnalysisException: unresolved operator 'CreateHiveTableAsSelectLogicalPlan CatalogTable(\r\n\tTable: `t`\r\n\tCreated: Fri Jun 24 00:09:15 PDT 2016\r\n\tLast Access: Wed Dec 31 15:59:59 PST 1969\r\n\tType: MANAGED\r\n\tStorage(InputFormat: org.apache.hadoop.mapred.TextInputFormat, OutputFormat: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat)), false;\r\n```\r\n\r\nThis PR is to issue a better error message: \r\n```\r\nHive support is required to use CREATE TABLE AS SELECT\r\n```\r\n\r\n#### How was this patch tested?\r\nAdded test cases in 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