siddharthteotia commented on a change in pull request #5605:
URL: https://github.com/apache/incubator-pinot/pull/5605#discussion_r445221833
##########
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) {
+ // NOTE: For SQL query, need to reorder the columns in the data table
based on the select expressions.
+
+ int[] selectExpressionIndexMap = getSelectExpressionIndexMap();
Review comment:
Should add a comment here that this is for SQL query compiled by calcite
compiler, parser and having both the options (groupByModeSql and
responseFormatSqL to true). Eventually we just want this path (SQL only) after
PQL is completely deleted.
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