clintropolis opened a new pull request #9698: fixes for inline subqueries when multi-value dimension is present URL: https://github.com/apache/druid/pull/9698 Fixes #9697. ### Description Modifies Group By queries to treat unknown column capabilities as potentially multi-value dimensions, and TopN query to use `HeapBasedTopNAlgorithm` when capabilities are unknown to handle strings without known cardinality and numbers. <hr> This PR has: - [x] been self-reviewed. - [x] added unit tests or modified existing tests to cover new code paths. - [x] been tested in a test Druid cluster. <!-- Check the items by putting "x" in the brackets for the done things. Not all of these items apply to every PR. Remove the items which are not done or not relevant to the PR. None of the items from the checklist above are strictly necessary, but it would be very helpful if you at least self-review the PR. --> <hr> ##### Key changed/added classes in this PR * `GroupByQueryEngineV2` * `TopNQueryEngine`
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