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From: Laurenz Albe <[email protected]>
To: Dimitrios Apostolou <[email protected]>
To: Adrian Klaver <[email protected]>
Cc: [email protected]
Subject: Re: Experience and feedback on pg_restore --data-only
Date: Mon, 24 Mar 2025 19:41:35 +0100
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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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

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