Github user wangxiaojing commented on a diff in the pull request:
https://github.com/apache/spark/pull/2953#discussion_r19527141
--- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveQl.scala ---
@@ -845,6 +858,198 @@ private[hive] object HiveQl {
throw new NotImplementedError(s"No parse rules for:\n
${dumpTree(a).toString} ")
}
+ // store the window def of current sql
+ //use thread id as key to avoid mistake when muti sqls parse at the same
time
+ protected val windowDefMap = new ConcurrentHashMap[Long,Map[String,
Seq[ASTNode]]]()
+
+ // store the window spec of current sql
+ //use thread id as key to avoid mistake when muti sqls parse at the same
time
--- End diff --
Space after //
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