Github user fhueske commented on the issue:
https://github.com/apache/flink/pull/4263
Hi @rtudoran, I had a look at the PR and left a comment on
[FLINK-6075](https://issues.apache.org/jira/browse/FLINK-6075).
I think we do not need retraction for `OFFSET` and `FETCH` on `ORDER BY
*time ASC` and can implement this by extending the existing `ProcessFunction`
for sorting. We only need to buffer and retract rows if we support `OFFSET` and
`FETCH` for arbitrary sort orders.
Let me know what you think,
Fabian
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