siddharthteotia commented on a change in pull request #5605:
URL: https://github.com/apache/incubator-pinot/pull/5605#discussion_r445137891
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/query/reduce/GroupByDataTableReducer.java
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@@ -171,106 +160,81 @@ public void reduceAndSetResults(String tableName,
DataSchema dataSchema,
*/
private void setSQLGroupByInResultTable(BrokerResponseNative
brokerResponseNative, DataSchema dataSchema,
Collection<DataTable> dataTables) {
-
+ DataSchema resultTableSchema = getSQLResultTableSchema(dataSchema);
IndexedTable indexedTable = getIndexedTable(dataSchema, dataTables);
-
- int[] finalSchemaMapIdx = null;
- if (_sqlSelectionList != null) {
- finalSchemaMapIdx = getFinalSchemaMapIdx();
- }
- List<Object[]> rows = new ArrayList<>();
Iterator<Record> sortedIterator = indexedTable.iterator();
- int numRows = 0;
- while (numRows < _groupBy.getTopN() && sortedIterator.hasNext()) {
- Record nextRecord = sortedIterator.next();
- Object[] values = nextRecord.getValues();
-
- int index = _numGroupBy;
- int aggNum = 0;
- while (index < _numColumns) {
- values[index] = AggregationFunctionUtils
-
.getSerializableValue(_aggregationFunctions[aggNum++].extractFinalResult(values[index]));
- index++;
+ int limit = _queryContext.getLimit();
+ List<Object[]> rows = new ArrayList<>(limit);
+
+ if (_sqlQuery) {
Review comment:
I am not sure why we had to change the logic. We already have support
for schema mapping for a column right? getFinalSchemaMapIdx() is supposed to do
that.
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