From: Tom Lane <tgl@sss.pgh.pa.us>
To: Wells Oliver <wells.oliver@gmail.com>
cc: pgsql-admin <pgsql-admin@postgresql.org>
Subject: Re: pg_restore: warning: invalid creation date in header
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Comments: In-reply-to Wells Oliver <wells.oliver@gmail.com>
	message dated "Sun, 13 Jun 2021 09:02:41 -0700"
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Date: Sun, 13 Jun 2021 12:12:25 -0400
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Wells Oliver <wells.oliver@gmail.com> writes:
> Tom, it's a directory format dump, what file would make the most sense to
> run oc on? Or does this not work w/a directory?

The toc.dat file.  You should see something like

$ od -c mydump/toc.dat | head
0000000   P   G   D   M   P 001 016  \0 004  \b 003 001 001  \0  \0  \0
0000020  \0 027  \0  \0  \0  \0  \n  \0  \0  \0  \0  \f  \0  \0  \0  \0
0000040  \r  \0  \0  \0  \0 005  \0  \0  \0  \0   y  \0  \0  \0  \0 001
0000060  \0  \0  \0  \0  \n  \0  \0  \0   r   e   g   r   e   s   s   i
0000100   o   n  \0  \a  \0  \0  \0   1   4   b   e   t   a   1  \0  \a
0000120  \0  \0  \0   1   4   b   e   t   a   1  \0 315  \b  \0  \0  \0
0000140   u 037  \0  \0  \0  \0  \0  \0  \0  \0 001  \0  \0  \0   0  \0
0000160 001  \0  \0  \0   0  \0  \b  \0  \0  \0   E   N   C   O   D   I
0000200   N   G  \0  \b  \0  \0  \0   E   N   C   O   D   I   N   G  \0
0000220 002  \0  \0  \0  \0   #  \0  \0  \0   S   E   T       c   l   i

If there's not a "PGDMP" signature at the start then it's the wrong
file.

			regards, tom lane