sreemanamala commented on code in PR #17036:
URL: https://github.com/apache/druid/pull/17036#discussion_r1766574327
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extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/querykit/WindowOperatorQueryFrameProcessor.java:
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@@ -451,6 +453,14 @@ private boolean comparePartitionKeys(ResultRow row1,
ResultRow row2, List<String
int match = 0;
for (String columnName : partitionColumnNames) {
int i = frameReader.signature().indexOf(columnName);
+ if
(ColumnType.STRING.equals(frameReader.signature().getColumnType(columnName).get())
&& (row1.get(i) instanceof List || row2.get(i) instanceof List)) {
+ // special handling to reject MVDs
+ throw new UOE(
Review Comment:
I guess we should throw DruidException - InvalidInput
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