hanyuzheng7 commented on code in PR #14477:
URL: https://github.com/apache/kafka/pull/14477#discussion_r1349442196
##########
streams/src/main/java/org/apache/kafka/streams/state/internals/MeteredKeyValueStore.java:
##########
@@ -254,17 +254,37 @@ protected <R> QueryResult<R> runRangeQuery(final Query<R>
query,
final QueryResult<R> result;
final RangeQuery<K, V> typedQuery = (RangeQuery<K, V>) query;
final RangeQuery<Bytes, byte[]> rawRangeQuery;
+ final boolean isKeyAscending = typedQuery.isKeyAscending();
if (typedQuery.getLowerBound().isPresent() &&
typedQuery.getUpperBound().isPresent()) {
- rawRangeQuery = RangeQuery.withRange(
- keyBytes(typedQuery.getLowerBound().get()),
- keyBytes(typedQuery.getUpperBound().get())
- );
+ if (isKeyAscending) {
+ rawRangeQuery = RangeQuery.withRange(
+ keyBytes(typedQuery.getLowerBound().get()),
+ keyBytes(typedQuery.getUpperBound().get())
+ );
+ } else {
+ rawRangeQuery = (RangeQuery<Bytes, byte[]>) (RangeQuery<?, ?>)
RangeQuery.withRange(
+ keyBytes(typedQuery.getLowerBound().get()),
+ keyBytes(typedQuery.getUpperBound().get())
+ ).withDescendingKeys();
Review Comment:
Thank you, I choose lift the final for rawRangeQuery and have already
updated it.
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