gianm opened a new pull request, #17173:
URL: https://github.com/apache/druid/pull/17173
Using the "intervals" feature on subqueries, or any non-table, should be
avoided because it isn't a meaningful optimization in those cases, and it's
simpler for runtime implementations if they can assume all filters are located
in the regular filter object.
Two changes:
1) Fix the logic in DruidQuery.canUseIntervalFiltering. It was intended
to return false for QueryDataSource, but actually returned true.
2) Add a validation to ScanQueryFrameProcessor to ensure that when running
on an input channel (which would include any subquery), the query has
"intervals" set to ONLY_ETERNITY.
Prior to this patch, the new test case in testTimeFilterOnSubquery would
throw a "Can only handle a single interval" error in the native engine, and
"QueryNotSupported" in the MSQ engine.
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