Tom Lane wrote:
Andrew Dunstan <and...@dunslane.net> writes:
Tom Lane wrote:
A somewhat more plausible scenario is that somebody might hope that
they could do something like this:
echo 'some custom header' >pg.dump
pg_dump -Fc >>pg.dump
What would anyone hope to achieve by such a manoeuvre, even if it
worked, which I am close the dead sure it would not?
It looks to me like it probably would actually work, so far as pg_dump
is concerned, but _discoverArchiveFormat() would break it because that
tries to do an unconditional fseeko(fp, 0, SEEK_SET) (and the position
counting is screwed up even if the fseeko fails). That could probably
be fixed if anyone thought this scenario was interesting enough to
justify work directed specifically at it.
IIRC pg_restore expects the archive to begin with the header and TOC
produced by pg_dump. Maybe I'm being dense, but I'm not able to see how
prefixing that with something else could possibly do something useful or
workable.
cheers
andrew
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