parthchandra commented on a change in pull request #1358: DRILL-6516: EMIT
support in streaming agg
URL: https://github.com/apache/drill/pull/1358#discussion_r201169753
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/aggregate/StreamingAggBatch.java
##########
@@ -496,6 +620,30 @@ private void getIndex(ClassGenerator<StreamingAggregator>
g) {
}
}
+ private IterOutcome getFinalOutcome() {
+ IterOutcome outcomeToReturn;
+
+ if(firstBatchForDataSet) {
+ firstBatchForDataSet = false;
+ }
+ if (firstBatchForSchema) {
+ outcomeToReturn = OK_NEW_SCHEMA;
+ firstBatchForSchema = false;
+ } else if (recordCount == 0) {
+ // get the outcome to return before calling refresh since that resets
the lastKnowOutcome to OK
+ outcomeToReturn = lastKnownOutcome == EMIT ? EMIT : NONE;
+ if (outcomeToReturn == EMIT) {
+ firstBatchForDataSet = true;
+ }
+ } else if (lastKnownOutcome == EMIT) {
Review comment:
Done
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