Re: pg_xmin_horizon: a system view of everything pinning the xmin horizon

Hi all,

On Mon, Aug 3, 2026 at 5:44 AM Scott Ray <scott(at)scottray(dot)io> wrote:
>
> I rebased on 4e68b7e291d. Upstream took TAP 055, so the new TAP is now 056.
>

Thank you for addressing my suggestion. And thank you for the updated
patch. I reviewed and tested the v3 patch, including the newly added
datname column. The patch applied cleanly and built successfully on my
tree and verified that the datname column is now included in the
pg_xmin_horizon view definition and is correctly populated for backend
and prepared transaction entries. The reported values were consistent
with the corresponding database information, and the addition improves
the readability of the view by avoiding an extra join to pg_database.
The new column also aligns well with the existing interfaces provided
by pg_stat_activity, pg_replication_slots, and pg_prepared_xacts.
The updated patch looks good to me.

Regards,
Solai