On Wed, Aug 27, 2025 at 10:42 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
Ron Johnson <ronljohnsonjr@gmail.com> writes: > On Wed, Aug 27, 2025 at 10:16 AM Tom Lane <tgl@sss.pgh.pa.us> wrote: >> Don't use --format=custom (and not -v either). That causes pg_dump to >> include the OIDs and pg_dump object IDs of all the tables and other >> objects,
> That's interesting. Why? (Since isn't it supposed to be Bad to rely on > OIDs?)
-v in a text-format dump includes that data for debugging purposes:
(The "TOC entry" comment line wouldn't be there without -v.) Then custom format has to store the same info so that pg_restore can produce this identical text output on demand.
Ah, so the culprit is "-v". I like using -v, redirecting it to a log file (more info is almost always better), but then I rarely use pg_dump, and never pipe it to de-duplicators. (ExaGrid is supposed to deduplicate, but that's not going to stop me from using pgbackrest, compression and encryption; PCI auditors care about that, not deduplication.)
