timsaucer commented on PR #17289:
URL: https://github.com/apache/datafusion/pull/17289#issuecomment-3242283062
> Tim, would we be able to implement lambda functions on top of this PR or
more work needed?
>
> Something like:
>
> ```sql
> SELECT array_sort(array('Hello', 'World'),
> (p1, p2) -> CASE WHEN p1 = p2 THEN 0
> WHEN reverse(p1) < reverse(p2) THEN -1
> ELSE 1 END);
> ```
>
>
https://docs.databricks.com/aws/en/sql/language-manual/sql-ref-lambda-functions
I hadn't considered that, but it sounds like an excellent idea to support.
I'm going to think some more about it. I definitely think this would be a
strong supporting argument for doing this.
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