Re: BUG #19365: postgres 18 pg_dump fails whan drop sequence concurrently

On Mon, Dec 29, 2025 at 12:28:07PM -0500, Tom Lane wrote:
> PG Bug reporting form <noreply@postgresql.org> writes:
>> In postgres 18, I started getting random errors from `pg_dump`:
>> pg_dump: error: query failed: ERROR:  could not open relation with OID 16741
>> pg_dump: detail: Query was: SELECT seqrelid, format_type(seqtypid, NULL),
>> seqstart, seqincrement, seqmax, seqmin, seqcache, seqcycle, last_value,
>> is_called FROM pg_catalog.pg_sequence, pg_get_sequence_data(seqrelid) ORDER
>> BY seqrelid;
> 
> Thanks for the report.  I posted an analysis here:
> 
> https://www.postgresql.org/message-id/2885944.1767029161%40sss.pgh.pa.us

I've committed the following in an attempt to fix this:

    https://postgr.es/c/7a485bd641 (master)
    https://postgr.es/c/39d5555766 (v18)

Could you please verify that it fixes your use-case?

-- 
nathan