aliehsaeedii commented on code in PR #14596:
URL: https://github.com/apache/kafka/pull/14596#discussion_r1380260267
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streams/src/main/java/org/apache/kafka/streams/state/internals/StoreQueryUtils.java:
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@@ -335,6 +342,42 @@ private static <R> QueryResult<R>
runWindowRangeQuery(final Query<R> query,
}
}
+ @SuppressWarnings("unchecked")
+ private static <R> QueryResult<R> runVersionedKeyQuery(final Query<R>
query,
+ final PositionBound
positionBound,
+ final QueryConfig
config,
+ final StateStore
store) {
+ if (store instanceof VersionedKeyValueStore) {
Review Comment:
> Do we need this check? Seems our code ensures that we call this method
only is this condition is true. -- If we call it incorrectly a hard crash would
be preferred to clearly surface the bug, and not masked it, and thus make it
harder to debug.
I think yes. When we are calling
`StateQueryRequest.inStore("my_store_name").withQuery(myVersionedKeyQuery)`,
how does it know that the `my_store_name` is of which type? Ok, if we remove
this condition, then there will be a hard crash but there is no suitable error
message to instruct the user on how to debug it or where he should start
debugging and looking into it.
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