[GENERAL] Imperative Query Languages

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