[GitHub] [kafka] big-andy-coates commented on a change in pull request #9156: KAFKA-10077: Filter downstream of state-store results in spurious tombstones

[GitBox]

big-andy-coates commented on a change in pull request #9156:
URL: https://github.com/apache/kafka/pull/9156#discussion_r490152263



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File path: 
streams/src/main/java/org/apache/kafka/streams/kstream/internals/KTableImpl.java
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@@ -182,6 +182,8 @@ public String queryableStoreName() {
         final KTableProcessorSupplier<K, V, V> processorSupplier =
             new KTableFilter<>(this, predicate, filterNot, queryableStoreName);
 
+        processorSupplier.enableSendingOldValues(true);

Review comment:
       As discussed offline - change the behaviour of `enableSendingOldValues` 
such that a node that is already materialized will not ask upstream nodes to 
also send old values, is deemed out of scope of this PR.
   
   @mjsax has requested a ticket to track this work: 
https://issues.apache.org/jira/browse/KAFKA-10494




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