lincoln-lil opened a new pull request, #21222:
URL: https://github.com/apache/flink/pull/21222
## What is the purpose of the change
this is the backport pr for FLINK-29849 & FLINK-29781
## Brief change log
for FLINK-29849
* add a new StreamFilterIntoJoinRule for streaming, it doesn't push a filter
into join which is a temporal join using event time.
* add a FlinkSnapshotRequirementProgram to update snapshot requirement for
its child source to avoid adding the ChangelogNormalize node in such cases
for FLINK-29781
* add the unique key indexes remapping logic for
WatermarkAssignerChangelogNormalizeTransposeRule
## Verifying this change
TemporalJoinTest & TemporalRowTimeJoinOperatorTest
## 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)
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