pub fn based_on<Q: HasWindow>(name: impl Into<Cow<'static, str>>) -> impl Mod<Q>Expand description
Extend an existing named window, taking its PARTITION BY and — unless this one
has its own — its ORDER BY.
SQLite refuses this when the base window has a frame specification, which is why
Function::over_name exists: that writes
OVER "w", a reference, where this builds OVER ("w" …), a copy.