Support split the encoded wal payload in columnar format

[ShiKaiWi]

Describe This Problem

Although wal payload in columnar format is supported, the feature is not offered to split the payload in columnar format to avoid large wal log. And in some cases, large wal logs may lead to bad peformance.

Proposal

For the rowwise wal payload, the manual split on the encoded rows helps reduce the wal log's size. However, it's hard to split the columnar payload. Maybe let the wal manager implement to provide the split mechanism is better so that there is no need to manipulate the encoded payload encoded in different format.

Additional Context

No response