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From gatorsmile <>
Subject [GitHub] spark pull request #18086: [SPARK-20854][SQL] Extend hint syntax to support ...
Date Sun, 28 May 2017 03:53:54 GMT
Github user gatorsmile commented on a diff in the pull request:
    --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/hints.scala
    @@ -25,7 +25,7 @@ import org.apache.spark.sql.internal.SQLConf
      * should be removed This node will be eliminated post analysis.
      * A pair of (name, parameters).
    -case class UnresolvedHint(name: String, parameters: Seq[String], child: LogicalPlan)
    +case class UnresolvedHint(name: String, parameters: Seq[Any], child: LogicalPlan)
    --- End diff --
    To support multiple parameters in `hint`, does it make sense to do it like `df.hint("hint",
"1, 2, c")`? We can use our Parser to parse this parameter string. 

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