Re: Slow pg_dump

[Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>]

"Ryan Wells" <ryan(dot)wells(at)soapware(dot)com> writes:
> We have several tables that are used to store binary data as bytea (in
> this example image files),

Precompressed image formats, no doubt?
 
> pg_dump -i -h localhost -p 5432 -U postgres -F c -v -f "backupTest.backup" -t "public"."images" db_name

Try it with -Z0, or even drop the -Fc completely, since it's certainly
not very helpful on a single-table dump.  Re-compressing already
compressed data is not only useless but impressively slow ...

Also, drop the -i, that's nothing but a foot-gun.

			regards, tom lane