[ https://issues.apache.org/jira/browse/FLINK-40421 ]
Hirson Zhang deleted comment on FLINK-40421:
--------------------------------------
was (Author: JIRAUSER308616):
[~dianfu] , could you assign the issue to me please?
One semantic detail is how to handle an Expression that already has `.asc` or
`.desc`: should its ordering always be overridden according to the
`descending` option, even when the option is omitted？
Thank you!
> Add sorting support in DataFrame API
> ------------------------------------
>
> Key: FLINK-40421
> URL: https://issues.apache.org/jira/browse/FLINK-40421
> Project: Flink
> Issue Type: Sub-task
> Components: API / Python
> Reporter: Liu Liu
> Priority: Major
>
> Add ordering transformations:
> {code:java}
> def sort(
> self,
> by,
> *,
> descending=False,
> nulls_first=None,
> ) -> DataFrame {code}
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