[Feature] Support delete in Partial-update

[phadmoe]

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• I searched in the issues and found nothing similar.

Motivation

We use Paimon Partial-update to build a wide table, repalcing traditional multi-stream join job in Flink.
Since the multi-stream data come from different date(dt), we do not use dt as primary key.
So we hope to use insert & delete(not supported yet) Flink job at the same time to maintain the table data at 45 days.

Solution

No response

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!