Au-Miner commented on code in PR #28681:
URL: https://github.com/apache/flink/pull/28681#discussion_r3557791416
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flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/utils/RelTreeWriterImpl.scala:
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@@ -279,6 +240,122 @@ class RelTreeWriterImpl(
pw.println()
}
+ override def item(term: String, value: AnyRef): RelWriter = {
+ if (withQueryHint || withQueryBlockAlias) {
+ value match {
+ case rexNode: RexNode if containsSubQuery(rexNode) =>
+ return super.item(term, toHintAwareSubQueryString(rexNode))
+ case _ =>
+ }
+ }
+ super.item(term, value)
+ }
+
Review Comment:
Currently, the join hints of each subquery are updated recursively, ensuring
that all hints, including the join hints, of each subquery are printed
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