pg_restore -j

Hi,

I just noticed (!) that Make accepts an argument-less -j option, which
it takes to mean "use as many parallel jobs as possible".  As far as I
see in our pg_restore code, we don't even accept an argumentless -j
option; was this deviation from the Make precedent on purpose, or were
we just not following Make at all on this?

I have to admit that I'm not really sure whether this kind of usage
would be a reasonable thing for pg_restore to support.

(Even if this was a good idea, I'm not suggesting that it be implemented
for 8.4.  But if it is, then maybe it deserves a TODO entry.)

Thoughts?

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.