sohami commented on a change in pull request #1490: DRILL-6766: Lateral Unnest
query : IllegalStateException - rowId in right batch of lateral is smaller than
rowId in left batch being processed
URL: https://github.com/apache/drill/pull/1490#discussion_r222897205
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/aggregate/StreamingAggBatch.java
##########
@@ -298,59 +305,63 @@ public IterOutcome innerNext() {
// If outcome is NONE then we send the special batch in the first
iteration and the NONE
// outcome in the next iteration. If outcome is EMIT, we can send
the special
// batch and the EMIT outcome at the same time.
-
- IterOutcome finalOutcome = getFinalOutcome();
- return finalOutcome;
+ return getFinalOutcome();
}
firstBatchForDataSet = true;
firstBatchForSchema = false;
if(first) {
first = false;
}
- if(lastKnownOutcome == OK_NEW_SCHEMA) {
- sendEmit = true;
+ if(returnOutcome == OK_NEW_SCHEMA) {
+ sendEmit = (aggregator == null) ||
aggregator.previousBatchProcessed();
Review comment:
`aggregator` should ideally not be null here. This is just to avoid NPE and
since returned AggOutcome is `RETURN_AND_RESET` with `OK_NEW_SCHEMA` then the
next batch should be an empty batch with `EMIT` outcome.
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