Github user Ben-Zvi commented on a diff in the pull request:
https://github.com/apache/drill/pull/822#discussion_r119256700
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/aggregate/HashAggTemplate.java
---
@@ -204,24 +293,157 @@ private int getNumPendingOutput() {
@RuntimeOverridden
public void setupInterior(@Named("incoming") RecordBatch incoming,
@Named("outgoing") RecordBatch outgoing,
- @Named("aggrValuesContainer") VectorContainer aggrValuesContainer)
{
+ @Named("aggrValuesContainer") VectorContainer aggrValuesContainer)
throws SchemaChangeException {
}
@RuntimeOverridden
- public void updateAggrValuesInternal(@Named("incomingRowIdx") int
incomingRowIdx, @Named("htRowIdx") int htRowIdx) {
+ public void updateAggrValuesInternal(@Named("incomingRowIdx") int
incomingRowIdx, @Named("htRowIdx") int htRowIdx) throws SchemaChangeException{
}
@RuntimeOverridden
- public void outputRecordValues(@Named("htRowIdx") int htRowIdx,
@Named("outRowIdx") int outRowIdx) {
+ public void outputRecordValues(@Named("htRowIdx") int htRowIdx,
@Named("outRowIdx") int outRowIdx) throws SchemaChangeException{
}
}
+ /**
+ * An internal class to replace "incoming" - instead scanning a spilled
partition file
+ */
+ public class SpilledRecordbatch implements CloseableRecordBatch {
--- End diff --
Moved out the inner class into an independent class. (The "static inner
class" approach failed due to a possible bug with Drill bytecode fixup -- the
first parameter in the constructor was eliminated in the generated code).
Extending the record batch interface was intentional - this leads to a
very neat handling of the batch in the Hash Agg -- no code change, just like
handling the batches incoming from upstream.
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