Dandandan opened a new issue #298: URL: https://github.com/apache/arrow-datafusion/issues/298
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** Window functions are a very valuable feature to have for DataFusion, as it allows to do analytical queries and things like deduplication to happen. **Describe the solution you'd like** Initial support for window functions with `OVER ()` clause. This allows us to gradually add more features, like support for `partition by` and `order by`. **Describe alternatives you've considered** A more complete implementation in one go. Window functions however are a big feature and we probably need quite some iterations to get it in shape. **Additional context** Some material: http://www.vldb.org/pvldb/vol8/p1058-leis.pdf&ved=2ahUKEwj80-3OjrfwAhUJPOwKHfdRAssQFjAMegQIEhAC&usg=AOvVaw2KKUPeYhyc-pEFTmlqyboj -- 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. For queries about this service, please contact Infrastructure at: [email protected]
