Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/3829#discussion_r139529681 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/table.scala --- @@ -762,13 +763,10 @@ class Table( * @tparam T The data type that the [[TableSink]] expects. */ def writeToSink[T](sink: TableSink[T]): Unit = { - - def queryConfig = this.tableEnv match { - case s: StreamTableEnvironment => s.queryConfig - case b: BatchTableEnvironment => new BatchQueryConfig - case _ => null + val queryConfig = Option(this.tableEnv) match { --- End diff -- `tableEnv` should never be `null`. Can we make this `def queryConfig = this.tableEnv.queryConfig`?
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