Support for SQL window functions, as per: - [__`postgres`__ window function doco](https://www.postgresql.org/docs/current/tutorial-window.html). - [__`sqlite`__ window function doco](https://www.sqlite.org/windowfunctions.html). // TODO: Enumerate exactly which fiunctions are required for what version of `stackqkl`.
Support for SQL window functions, as per:
postgreswindow function doco.sqlitewindow function doco.// TODO: Enumerate exactly which fiunctions are required for what version of
stackqkl.