## What is the purpose of the change

TableFunctionCollector should handle the life cycle of ScalarFunction

## Brief change log

* Make `TableFunctionCollector` extends `AbstractRichFunction`
* do open() and close()


## Verifying this change

This change added tests and can be verified as follows:
* 
`org.apache.flink.table.runtime.batch.table.CorrelateITCase#testTableFunctionWithFilterInside`
* 
`org.apache.flink.table.runtime.stream.table.CorrelateITCase#testTableFunctionWithFilterInside`
## 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, Yarn/Mesos, ZooKeeper:  no
  - The S3 file system connector:  no

## Documentation

  - Does this pull request introduce a new feature?  no
  - If yes, how is the feature documented?  not documented


[ Full content available at: https://github.com/apache/flink/pull/6771 ]
This message was relayed via gitbox.apache.org for [email protected]

Reply via email to