Re: Experience and feedback on pg_restore --data-only

On Mon, 2025-03-24 at 16:51 +0100, Dimitrios Apostolou wrote:
> Laurenz informed me that I could avoid writing to the WAL if I "create and
> load the table in a single transaction".
> I haven't tried, but here is what I would do to try --single-transaction:
> 
> Transaction 1: manually issuing all of CREATE TABLE etc.
> 
> Transaction 2: pg_restore --single-transaction --data-only
> 
> The COPY command in transaction 2 would still need to write to WAL, since
> it's separate from the CREATE TABLE.
> 
> Am I wrong somewhere?

No, that is correct.

Yours,
Laurenz Albe