lincoln-lil opened a new pull request, #23316:
URL: https://github.com/apache/flink/pull/23316
## What is the purpose of the change
As the issue shows there's some chance for optimizing the lookup join when
do a left join (maybe full outer join as well in future) which has filter
condition on left input in the join condition. We can achieve this by adding a
prefilter in lookup join operator, this is what has been done in the pr.
## Brief change log
* add a new FilterCondition to the codegen part
* add pre-filter (via codegen) for lookup join operator
## Verifying this change
* json plan test (LookupJoinJsonPlanTest)
* lookup join operator tests (LookupJoinHarnessTest
KeyedLookupJoinHarnessTest AsyncLookupJoinHarnessTest)
* lookup join itcase (LookupJoinITCase)
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (no)
- The public API, i.e., is any changed class annotated with
@Public(Evolving): (no)
- The serializers: (no )
- The runtime per-record code paths (performance sensitive): (no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
