xuyangzhong opened a new pull request, #24162:
URL: https://github.com/apache/flink/pull/24162
## What is the purpose of the change
Introduce windowed unslice window assigner. And support session window table
function without pulling up with window agg.
Note: this is a draft pr, and only the commits which messages start with
'[FLINK-34100]' is new commits related to this pr.
## Brief change log
- *add function getDescription for internal interface WindowAssigner*
- *extract a WindowTableFunctionOperatorBase from
WindowTableFunctionOperator to prepare for introducing unaligned window table
function*
- *introduce UnalignedWindowTableFunctionOperator for unaligned window*
- *fix missing exchange before window table function node*
- *support session window table function without pulling up with window
agg*
## Verifying this change
Some harness tests and ITCases are added.
## 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? yes
- If yes, how is the feature documented? A later single pr.
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