js8544 commented on issue #32190: URL: https://github.com/apache/arrow/issues/32190#issuecomment-1585565496
> CC @icexelloss / @rtpsw / @ildipo may be interested in these functions when available. They are classic window functions and so could be useful in the work that is being done to add window function support to Acero. Regarding window functions. I also implemented a `pairwise_diff` function (https://github.com/apache/arrow/pull/35787) you guys may also want to take a look. `pairwise` functions would corresponds to `LAG`/`LEAD` window functions in SQL. I also plan to implement a series of `rolling_*` functions that computes over a fixed length sliding window soon, which corresponds to the window option `ROWS BETWEEN n PRECEDING AND CURRENT ROW` in sql. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
