Hi,
On 2025-07-23 02:50:04 +0200, Tomas Vondra wrote:
> But I don't see why would this have any effect on the prefetch distance,
> queue depth etc. Or why decreasing INDEX_SCAN_MAX_BATCHES should improve
> that. I'd have expected exactly the opposite behavior.
>
> Could be bug, of course. But it'd be helpful to see the dataset/query.
Pgbench scale 500, with the simpler query from my message.
Greetings,
Andres Freund