Re: [PERFORM] BUG #4919: CREATE USER command slows down system performance

Tom Lane wrote:
> Alvaro Herrera  writes:
> > toruvinn wrote:
> >> I was always wondering, though, why PostgreSQL uses this approach and not 
> >> its catalogs.
> 
> > It does use the catalog for most things.  THe flatfile is used for the
> > situations where the catalogs are not yet ready to be read.
> 
> Now that we have SQL-level CONNECT privilege, I wonder just how much
> functionality would be lost if we got rid of the flat files and told
> people they had to use CONNECT to do any per-user or per-database
> access control.
> 
> The main point I can see offhand is that password checking would have
> to be done a lot later in the startup sequence, with correspondingly
> more cycles wasted to reject bad passwords.

Is this a TODO?

-- 
  Bruce Momjian          http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +