On 05/04/2017 01:33 PM, Alvaro Herrera wrote: > Andrew Dunstan wrote: > >> Hadn't though about LATERAL, good point. Still, there will be other cases. > I'm not sure what your point is. We know that for some cases the > optimization barrier semantics are useful, which is why the proposal is > to add a keyword to install one explicitely: > > with materialized r as > ( > select json_populate_record(null::mytype, myjson) as x > from mytable > ) > select (x).* > from r; > > this would preserve the current semantics. >
I understand. Some people appear to think hardly anyone will actually need this - that's what I was arguing against. cheers andrew -- Andrew Dunstan https://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
