[Bug] Parallelism cannot be controlled in `remove_orphan_files`

[sd4324530]

Search before asking

• I searched in the issues and found nothing similar.

Paimon version

1.3.1

Compute Engine

flink 1.20.3

Minimal reproduce step

CALL sys.remove_orphan_files(`table` => 'ods_mms_db.*', older_than => '2026-01-29 10:00:00', parallelism => 10, dryRun => true);

The database contains more than 600 tables.

What doesn't meet your expectations?

The parallelism of the job should be 10.
The actual parallelism is much higher than 10, which will exhaust the cluster resources.

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!