Re: Expression Evaluator used for creating the plan tree / stmt ? - Mailing list pgsql-hackers

Alvaro Herrera <alvherre@commandprompt.com> writes:
> Excerpts from Vaibhav Kaushal's message of mié may 25 05:52:32 -0400 2011:
>> If the above is confusing, I just want to ask: "Is expression evaluator,
>> even in part responsible for {PLANNEDSTMT creation?"

> Yeah, as far as I understood Tom's talk, the expr evaluator is used to
> reduce some expressions to constants and such.

The planner would never call it with an expression containing a Var,
though.
        regards, tom lane