{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/28563401","id":28563401,"diff_hunk":"@@ -77,9 +79,30 @@ case class Exchange(\n     }\n   }\n \n-  override def execute(): RDD[Row] = attachTree(this , \"execute\") {\n-    lazy val sparkConf = child.sqlContext.sparkContext.getConf\n+  @transient private lazy val sparkConf = child.sqlContext.sparkContext.getConf\n+\n+  def serializer(\n+      keySchema: Array[DataType],\n+      valueSchema: Array[DataType],\n+      numPartitions: Int): Serializer = {\n+    val useSqlSerializer2 =\n+      !(sortBasedShuffleOn && numPartitions > bypassMergeThreshold) &&","path":"sql/core/src/main/scala/org/apache/spark/sql/execution/Exchange.scala","position":30,"original_position":30,"commit_id":"09e587a1ff9136c81da05c2a7f2c0e9b85c09173","original_commit_id":"09e587a1ff9136c81da05c2a7f2c0e9b85c09173","user":{"login":"marmbrus","id":527,"avatar_url":"https://avatars.githubusercontent.com/u/527?v=3","gravatar_id":"","url":"https://api.github.com/users/marmbrus","html_url":"https://github.com/marmbrus","followers_url":"https://api.github.com/users/marmbrus/followers","following_url":"https://api.github.com/users/marmbrus/following{/other_user}","gists_url":"https://api.github.com/users/marmbrus/gists{/gist_id}","starred_url":"https://api.github.com/users/marmbrus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/marmbrus/subscriptions","organizations_url":"https://api.github.com/users/marmbrus/orgs","repos_url":"https://api.github.com/users/marmbrus/repos","events_url":"https://api.github.com/users/marmbrus/events{/privacy}","received_events_url":"https://api.github.com/users/marmbrus/received_events","type":"User","site_admin":false},"body":"Comment why this is a condition.","created_at":"2015-04-17T00:54:36Z","updated_at":"2015-04-17T00:54:36Z","html_url":"https://github.com/apache/spark/pull/5497#discussion_r28563401","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/5497","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/28563401"},"html":{"href":"https://github.com/apache/spark/pull/5497#discussion_r28563401"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/5497"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/5497","id":33203646,"html_url":"https://github.com/apache/spark/pull/5497","diff_url":"https://github.com/apache/spark/pull/5497.diff","patch_url":"https://github.com/apache/spark/pull/5497.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/5497","number":5497,"state":"open","locked":false,"title":"[SPARK-6368][SQL] Build a specialized serializer for Exchange 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