Hi,
On 2017-03-19 23:55:50 -0400, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > I've been pondering if we can't entirely get rid of CaseTest etc, the > > amount of hackery required seems not like a good thing. One way I'd > > prototyped was to replace them with PARAM_EXEC nodes - then the whole > > issue of them potentially having different values at different parts of > > an expression vanishes because the aliasing is removed. > > Yes, replacing all of that with Param slots had occurred to me too. > We might want to keep the special parse node types for convenience in > reverse-listing, but having them act just like PARAM_EXEC for execution > purposes seems promising. As long as that special parse-time node is part of the same value numbering, that makes sense (could just name make it a subtype of param ala PARAM_CASE). I don't think we actually do anything useful in ruleutils etc with either CaseTest or CoerceToDomainValue. - Andres -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
