Jackie-Jiang commented on a change in pull request #4648: Enable DISTINCT and
throw exceptions for not-supported cases
URL: https://github.com/apache/incubator-pinot/pull/4648#discussion_r328405214
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File path:
pinot-core/src/main/java/org/apache/pinot/core/operator/query/AggregationOperator.java
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@@ -50,6 +54,24 @@ public AggregationOperator(@Nonnull
AggregationFunctionContext[] functionContext
_transformOperator = transformOperator;
_numTotalRawDocs = numTotalRawDocs;
_useStarTree = useStarTree;
+ checkForDistinctWithMV();
+ }
+
+ /**
+ * DISTINCT queries are currently not supported on multi-value columns.
+ * So we need to check for this scenario and throw exception until
+ * support for MV columns is implemented
Review comment:
Please add a TODO to support MV
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