Re: Help with restoring a dump in Tar format? (dependencies/ordering)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Ken Tanzer <ken(dot)tanzer(at)gmail(dot)com>
Cc: PG-General Mailing List <pgsql-general(at)postgresql(dot)org>
Subject: Re: Help with restoring a dump in Tar format? (dependencies/ordering)
Date: 2017-06-06 02:11:45
Message-ID: 11788.1496715105@sss.pgh.pa.us
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Ken Tanzer <ken(dot)tanzer(at)gmail(dot)com> writes:
> ...The rest of the DB is fine, but tbl_payment has 0 rows. I believe this is
> because tbl_payment has a constraint that calls a function has_perm() that
> relies on data in a couple of other tables, and that tbl_payment is being
> restored before those tables. I was able to created a new dump in Custom
> format, reorder the List file, and restore that successfully.

> So I can switch to Custom format for future backups. But regarding the
> existing backups I have in Tar format, is there any way to successfully
> restore them?

FWIW, the business with making and editing a list file should work just
fine with a tar-format dump, not only with a custom-format dump. The
metadata is all there in either case.

As already noted, it's hard to get pg_dump/pg_restore to cope
automatically with hidden dependencies like what you have here.
The fact that those other tables would need to be restored first
simply isn't visible to pg_dump.

regards, tom lane

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