Madison Kelly wrote:
> Hi all,
> 
>   I am (re)writing a backup program and I want to add a section for
> backing up pSQL DBs. In the planning steps (making sure a given
> destination has enough space) I try to calculate how much space will be
> needed by a 'pg_dump' run *before* actually dumping it.

I suppose:

   pg_dump $PGD_OPTIONS | wc -c

isn't efficient enough, right?  Without knowing the options you plan
to use with pg_dump (compression?  dump just tables?, etc.) this is
going to be hard to get a decent estimate from...

-- 
Steve Wampler -- [EMAIL PROTECTED]
The gods that smiled on your birth are now laughing out loud.

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TIP 9: In versions below 8.0, the planner will ignore your desire to
       choose an index scan if your joining column's datatypes do not
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