Re: How to do pg_dump + pg_restore within Perl script?

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> I would like to replicate the following Unix pipe within a Perl script,
> perhaps using DBD::Pg:
>
>
> % pg_dump -Z9 -Fc -U <DB_USER> <FROM_DB> | pg_restore -v -d <TO_DB> -p
> <SSH_TUNNEL_PORT> -h localhost -U <DB_USER>
>
> Of course, I can try to use Perl's system, and the like, to run this pipe
> verbatim, but I this as a last-resort approach.
>
> Is there a more direct way?

If you mean emulate the pg_dump, no. pg_dump does a *lot* of stuff behind
the scenes, and trying to rewrite all that in Perl would be madness. And I
say that having written some serious madness into DBD::Pg already :). Stick
with the shell script, even if it means calling system.

If you simply want to avoid the pipes, you can think about calling pg_dump
from the remote box, using a authorized_keys with a specific command in it,
and other tricks, but nothing will be as straightforward and error proof
as the line you gave, I suspect.

- --
Greg Sabino Mullane greg@turnstep.com
End Point Corporation http://www.endpoint.com/
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