# Dolt feature roadmap Full details on [supported SQL features](https://docs.dolthub.com/interfaces/sql/sql-support) are available on the docs site. This is a selection of unimplemented features we're working on. It's not an ordered list. Don't see what you need on here? [Let us know!](https://github.com/dolthub/dolt/issues) Paying customers get their feature requests implemented first. * Primary key changes in `ALTER TABLE` * Tuples for `IN (...)` expressions * `push` and `pull` via SQL * JSON functions * More window functions * Cross-database joins with indexes * `ROWS PRECEDING` and `ROWS FOLLOWING` window definitions * More function coverage * Geometry types and functions