xuyangzhong commented on code in PR #23827:
URL: https://github.com/apache/flink/pull/23827#discussion_r1429367900
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flink-table/flink-table-runtime/src/main/java/org/apache/flink/table/runtime/functions/aggregate/JsonObjectAggFunction.java:
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@@ -128,6 +137,15 @@ public void merge(Accumulator acc, Iterable<Accumulator>
others) throws Exceptio
assertKeyNotPresent(acc, key);
acc.map.put(key, other.map.get(key));
}
+ for (final StringData key : other.retractMap.keys()) {
Review Comment:
IIUC, for retract streams, if -U comes before +U, +U might also be
eliminated?
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