{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/202743580","pull_request_review_id":137500643,"id":202743580,"node_id":"MDI0OlB1bGxSZXF1ZXN0UmV2aWV3Q29tbWVudDIwMjc0MzU4MA==","diff_hunk":"@@ -1024,26 +1033,29 @@ case class Cast(child: Expression, dataType: DataType, timeZoneId: Option[String\n   private[this] def castToIntervalCode(from: DataType): CastFunction = from match {\n     case StringType =>\n       (c, evPrim, evNull) =>\n-        s\"\"\"$evPrim = CalendarInterval.fromString($c.toString());\n+        code\"\"\"$evPrim = CalendarInterval.fromString($c.toString());\n            if(${evPrim} == null) {\n              ${evNull} = true;\n            }\n          \"\"\".stripMargin\n \n   }\n \n-  private[this] def decimalToTimestampCode(d: String): String =\n-    s\"($d.toBigDecimal().bigDecimal().multiply(new java.math.BigDecimal(1000000L))).longValue()\"\n-  private[this] def longToTimeStampCode(l: String): String = s\"$l * 1000000L\"\n-  private[this] def timestampToIntegerCode(ts: String): String =\n-    s\"java.lang.Math.floor((double) $ts / 1000000L)\"\n-  private[this] def timestampToDoubleCode(ts: String): String = s\"$ts / 1000000.0\"\n+  private[this] def decimalToTimestampCode(d: ExprValue): Block = {\n+    val block = code\"new java.math.BigDecimal(1000000L)\"","path":"sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala","position":431,"original_position":431,"commit_id":"f1f218068bc1e4c147c14dbc56c874c4c7d7cc4b","original_commit_id":"f1f218068bc1e4c147c14dbc56c874c4c7d7cc4b","user":{"login":"mgaido91","id":8821783,"node_id":"MDQ6VXNlcjg4MjE3ODM=","avatar_url":"https://avatars1.githubusercontent.com/u/8821783?v=4","gravatar_id":"","url":"https://api.github.com/users/mgaido91","html_url":"https://github.com/mgaido91","followers_url":"https://api.github.com/users/mgaido91/followers","following_url":"https://api.github.com/users/mgaido91/following{/other_user}","gists_url":"https://api.github.com/users/mgaido91/gists{/gist_id}","starred_url":"https://api.github.com/users/mgaido91/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mgaido91/subscriptions","organizations_url":"https://api.github.com/users/mgaido91/orgs","repos_url":"https://api.github.com/users/mgaido91/repos","events_url":"https://api.github.com/users/mgaido91/events{/privacy}","received_events_url":"https://api.github.com/users/mgaido91/received_events","type":"User","site_admin":false},"body":"nit: why isn't this a literal?","created_at":"2018-07-16T16:18:00Z","updated_at":"2018-07-16T16:19:07Z","html_url":"https://github.com/apache/spark/pull/21537#discussion_r202743580","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/21537","author_association":"CONTRIBUTOR","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/202743580"},"html":{"href":"https://github.com/apache/spark/pull/21537#discussion_r202743580"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/21537"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/21537","id":194209378,"node_id":"MDExOlB1bGxSZXF1ZXN0MTk0MjA5Mzc4","html_url":"https://github.com/apache/spark/pull/21537","diff_url":"https://github.com/apache/spark/pull/21537.diff","patch_url":"https://github.com/apache/spark/pull/21537.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/21537","number":21537,"state":"open","locked":false,"title":"[SPARK-24505][SQL] Convert strings in codegen to blocks: Cast and BoundAttribute","user":{"login":"viirya","id":68855,"node_id":"MDQ6VXNlcjY4ODU1","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":"## What changes were proposed in this pull request?\r\n\r\nThis is split from #21520. This includes changes of `BoundAttribute` and `Cast`.\r\nThis patch also adds few convenient APIs:\r\n\r\n```scala\r\nCodeGenerator.freshVariable(name: String, dt: DataType): VariableValue\r\nCodeGenerator.freshVariable(name: String, javaClass: Class[_]): VariableValue\r\n\r\nJavaCode.className(javaClass: Class[_]): InlineBlock\r\nJavaCode.javaType(dataType: DataType): InlineBlock\r\nJavaCode.boxedType(dataType: DataType): InlineBlock\r\n```\r\n\r\n\r\n## How was this patch tested?\r\n\r\nExisting tests.\r\n","created_at":"2018-06-12T08:55:11Z","updated_at":"2018-07-16T16:19:07Z","closed_at":null,"merged_at":null,"merge_commit_sha":"9b08d438a038e79960b7005c429ca6cfa8830156","assignee":null,"assignees":[],"requested_reviewers":[],"requested_teams":[],"labels":[],"milestone":null,"commits_url":"https://api.github.com/repos/apache/spark/pulls/21537/commits","review_comments_url":"https://api.github.com/repos/apache/spark/pulls/21537/comments","review_comment_url":"https://api.github.com/repos/apache/spark/pulls/comments{/number}","comments_url":"https://api.github.com/repos/apache/spark/issues/21537/comments","statuses_url":"https://api.github.com/repos/apache/spark/statuses/f1f218068bc1e4c147c14dbc56c874c4c7d7cc4b","head":{"label":"viirya:SPARK-24505-1","ref":"SPARK-24505-1","sha":"f1f218068bc1e4c147c14dbc56c874c4c7d7cc4b","user":{"login":"viirya","id":68855,"node_id":"MDQ6VXNlcjY4ODU1","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},"repo":{"id":21467907,"node_id":"MDEwOlJlcG9zaXRvcnkyMTQ2NzkwNw==","name":"spark-1","full_name":"viirya/spark-1","owner":{"login":"viirya","id":68855,"node_id":"MDQ6VXNlcjY4ODU1","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},"private":false,"html_url":"https://github.com/viirya/spark-1","description":"Mirror 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