suneet-s opened a new pull request #9200: Optimize JoinCondition matching URL: https://github.com/apache/druid/pull/9200 ### Description The LookupJoinMatcher needs to check if a condition is always true or false multiple times. This can be pre-computed to speed up the match checking This change reduces the time it takes to perform a for joining on a long key from ~ 36 ms/op to 23 ms/ op  This PR has: - [ ] been self-reviewed. - [ ] using the [concurrency checklist](https://github.com/apache/druid/blob/master/dev/code-review/concurrency.md) (Remove this item if the PR doesn't have any relation to concurrency.) - [ ] added documentation for new or modified features or behaviors. - [ ] added Javadocs for most classes and all non-trivial methods. Linked related entities via Javadoc links. - [ ] added or updated version, license, or notice information in [licenses.yaml](https://github.com/apache/druid/blob/master/licenses.yaml) - [ ] added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader. - [ ] added unit tests or modified existing tests to cover new code paths. - [ ] added integration tests. - [ ] been tested in a test Druid cluster.
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