Hi,
Thanks for the release notes!
> <!--
> Author: Andres Freund <and...@anarazel.de>
> 2023-04-06 [00d1e02be] hio: Use ExtendBufferedRelBy() to extend tables more
> eff
> Author: Andres Freund <and...@anarazel.de>
> 2023-04-06 [26158b852] Use ExtendBufferedRelTo() in XLogReadBufferExtended()
> -->
>
> <listitem>
> <para>
> Allow more efficient addition of multiple heap and index pages (Andres Freund)
> </para>
> </listitem>
While the case of extending by multiple pages improved the most, even
extending by a single page at a time got a good bit more scalable. Maybe just
"Improve efficiency of extending relations"?
I think:
> <!--
> Author: Andres Freund <and...@anarazel.de>
> 2023-04-08 [0fdab27ad] Allow logical decoding on standbys
> -->
>
> <listitem>
> <para>
> Allow logical decoding on standbys (Bertrand Drouvot, Andres Freund, Amit
> Khandekar)
> </para>
> </listitem>
pretty much includes:
> <!--
> Author: Andres Freund <and...@anarazel.de>
> 2023-04-07 [be87200ef] Support invalidating replication slots due to horizon
> an
> Author: Andres Freund <and...@anarazel.de>
> 2023-04-08 [26669757b] Handle logical slot conflicts on standby
> -->
>
> <listitem>
> <para>
> Allow invalidation of replication slots due to row removal, wal_level, and
> conflicts (Bertrand Drouvot, Andres Freund, Amit Khandekar)
> </para>
as it is a prerequisite.
I'd probably also merge
> <!--
> Author: Andres Freund <and...@anarazel.de>
> 2023-04-08 [0fdab27ad] Allow logical decoding on standbys
> -->
>
> <listitem>
> <para>
> Add function pg_log_standby_snapshot() to force creation of a WAL snapshot
> (Bertrand Drouvot)
> </para>
>
> <para>
> WAL snapshots are required for logical slot creation so this function speeds
> their creation on standbys.
> </para>
> </listitem>
As there really isn't a use case outside of logical decoding on a standby.
> <!--
> Author: Andres Freund <and...@anarazel.de>
> 2022-07-17 [089480c07] Default to hidden visibility for extension libraries
> whe
> Author: Andres Freund <and...@anarazel.de>
> 2022-07-17 [8cf64d35e] Mark all symbols exported from extension libraries
> PGDLL
> -->
>
> <listitem>
> <para>
> Prevent extension libraries from export their symbols by default (Andres
> Freund, Tom Lane)
> </para>
> </listitem>
s/export/exporting/?
Looking through the release notes, I didn't see an entry for
commit c6e0fe1f2a08505544c410f613839664eea9eb21
Author: David Rowley <drow...@postgresql.org>
Date: 2022-08-29 17:15:00 +1200
Improve performance of and reduce overheads of memory management
even though I think that's one of the more impactful improvements. What was
the reason for leaving that out?
Greetings,
Andres Freund
