Hi My question is: Does PostgreSQL implements equivalence rules(from those are listed in email's attachment)? Which function or which part of source code(in PostgreSQL ) implements the equivalence rules? I think, this should be implemented in query optimization part of PostgreSQL, but which rule
Hi Which equivalence rule from those are listed in email's attachment are implemented in postgresql? where are them? Thanks equivalenceRules.pdf Description: Adobe PDF document -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription:
where means, which function or which part of source code. I want to use that(function or part of source code), to produce the equivalence (based on equivalence rules in attachment) Relational Algebra for a given SQL query(Relational Algebra).