syntax for the algebra - or "shortcuts" for subselect

Had this in my mind for a while... but didn't have a chance to write it down yet:
I am thinking about whether it wouldn't make awful lot of sense to decouple some components that are separate operators in the algebra anyways but syntactically bound to (sub)select at the moment, namely:

 - ORDER BY
 - LIMIT
 - and Project expressions (also a recurring issue in the ongoing discussion about ASIGNMENT
 - aggregates

all these have separate operators in the 

Received on Wednesday, 11 August 2010 07:29:00 UTC