godfreyhe commented on a change in pull request #9363:
[FLINK-13587][table-planner-blink] Fix some operator names are not set in blink
planner
URL: https://github.com/apache/flink/pull/9363#discussion_r312015438
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File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/nodes/FlinkRelNode.scala
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@@ -101,6 +118,13 @@ trait FlinkRelNode extends RelNode {
}
}
+ def getExpressionFormat(pw: RelWriter): ExpressionFormat = pw match {
Review comment:
move this to a utility class? it's weird this interface should know
different kinds of `RelWriter`
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