yuxiqian commented on PR #4007:
URL: https://github.com/apache/flink-cdc/pull/4007#issuecomment-2834555952
> > One potential breaking change is that since we're always returning a
cached version instead of calculating it every time, we have to make it
unmodifiable to avoid it from being changed accidentally. Any callers that need
the previous behavior must create a copy explicitly.
>
> As you have returned an immutable list, do we still need to worry about
the caller modifying it?
Yes, this could be prohibited by wrapping it with
`Collections.unmodifiableList`, but some client codes like
`schema.getColumnNames().add("...")` have to be changed to make a copy manually.
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