(copying the list) On Wed, Jul 5, 2017 at 12:22 AM, Jason Dusek <jason.du...@gmail.com> wrote:
> Are there any “semi-imperative” query languages that have been tried in > the past? > not particularly relevant to the Unix or Windows worlds, but on OpenVMS there's Datatrieve: https://en.wikipedia.org/wiki/DATATRIEVE -John On Wed, Jul 5, 2017 at 12:22 AM, Jason Dusek <jason.du...@gmail.com> wrote: > Hi All, > > This more of a general interest than specifically Postgres question. Are > there any “semi-imperative” query languages that have been tried in the > past? I’m imagining a language where something like this: > > for employee in employees: > for department in department: > if employee.department == department.department and > department.name == "infosec": > yield employee.employee, employee.name, employee.location, > employee.favorite_drink > > would be planned and executed like this: > > SELECT employee.employee, employee.name, employee.location, > employee.favorite_drink > FROM employee JOIN department USING (department) > WHERE department.name == "infosec" > > The only language I can think of that is vaguely like this is Fortress, in > that it attempts to emulate pseudocode and Fortran very closely while being > fundamentally a dataflow language. > > Kind Regards, > > Jason > >
