luocooong commented on code in PR #2580:
URL: https://github.com/apache/drill/pull/2580#discussion_r908637682
##########
contrib/storage-kafka/src/main/java/org/apache/drill/exec/store/kafka/KafkaGroupScan.java:
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@@ -271,8 +292,11 @@ public void applyAssignments(List<DrillbitEndpoint>
incomingEndpoints) {
@Override
public GroupScan applyLimit(int maxRecords) {
- records = maxRecords; // Just apply the limit value into sub-scan
- return super.applyLimit(maxRecords);
+ if (maxRecords > records) { // pass the limit value into sub-scan
+ return new KafkaGroupScan(this, maxRecords);
+ } else { // stop the transform
+ return super.applyLimit(maxRecords);
Review Comment:
Can be returned null directly.
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