apache / apache/paimon

[Feature] Rewrite_file_index action job add partitions option

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enhancement
Dominant language
Java
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Merged PRs (30d)
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Description

### Search before asking

- [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar.

### Motivation

The `rewrite_file_index` Procedure supports specifying partitions, but in internal production practice, the Flink Procedure syntax cannot be used. Only the `rewrite_file_index` Action job can be used, however, it was found that `rewrite_file_index` Action job does not support partition specification, so this capability will be aligned with the Procedure.

### Solution

Add partition parameters

### Anything else?

It was found that although the `RewriteFileIndexActionITCase` unit test ran successfully, it did not achieve the desired testing effect; specifically, no test data or index files were generated. The main reason is that the job for constructing test data and the `rewrite_file_index` job are not executed synchronously.

### Are you willing to submit a PR?

- [x] I'm willing to submit a PR!

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the rewrite_file_index Action job and its RewriteFileIndexActionITCase test, then compare the Action job's arguments with the rewrite_file_index Procedure's partition support. Verify that test data and index files are created before the rewrite job runs; done means partition parameters work and the integration test exercises the generated index files.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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