On 10 January 2017 at 05:14, Robert Haas <robertmhaas@gmail.com> wrote:
> 2. The user doesn't need to re-declare the variables you want to use
> at the beginning of every session. This is also the reason why many
> people want global temporary tables. They don't do anything that
> can't be done with local temporary tables; they're just more
> convenient to use.
They'll also help a lot with pg_attribute and pg_class bloat.
I don't feel strongly either way about catalog use, but definitely
think declare-before-use is crucial. Pretty much every language that
implicitly declares variables has landed up adding a way to require
them to be declared for a reason.
-- Craig Ringer http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
