xuyangzhong commented on code in PR #26648:
URL: https://github.com/apache/flink/pull/26648#discussion_r2139267625
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flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/optimize/RelNodeBlock.scala:
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@@ -139,6 +141,16 @@ class RelNodeBlock(val outputNode: RelNode) {
def getMiniBatchInterval: MiniBatchInterval = miniBatchInterval
+ def setAllowDuplicateChanges(allowDuplicateChanges: Boolean): Unit = {
+ // a child block may have multiple parents (outputs), if one of the
parents could not
+ // accept duplicated changes, then this child block doesn't allow to
produce duplicate changes
+ if (this.allowDuplicateChanges) {
+ this.allowDuplicateChanges = allowDuplicateChanges
+ }
+ }
+
+ def isAllowDuplicateChanges: Boolean = allowDuplicateChanges
Review Comment:
The variable is already named as `allowDuplicateChanges`... I decide to
rename this method to `isDuplicateChangesAllowed`.
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