> On 17 Sep 2025, at 09:59, David Rowley <[email protected]> wrote:
>
> Does anyone think this is worth pursuing further?
I heard of following use-case: data transferring system partition big tables by
ctid ranges to mimic parallel secscan, but with many network connections. Some
performance improvement was claimed and connection failure resistance (when one
connection was broken only one partition is rescanned with same snapshot).
I'm not entirely sure this is a safe approach (I have a gut feeling that tid
scan is not MVCC safe). But for retrieving very big tables without strong
guarantees this might make some sense.
Would your patch improve performance of such case?
Best regards, Andrey Borodin.
