Re: pgsql: Database-level collation version tracking

On Mon, Feb 14, 2022 at 07:40:22AM +0000, Peter Eisentraut wrote:
> Database-level collation version tracking
>
> This adds to database objects the same version tracking that collation
> objects have.  There is a new pg_database column datcollversion that
> stores the version, a new function
> pg_database_collation_actual_version() to get the version from the
> operating system, and a new subcommand ALTER DATABASE ... REFRESH
> COLLATION VERSION.
>
> This was not originally added together with pg_collation.collversion,
> since originally version tracking was only supported for ICU, and ICU
> on a database-level is not currently supported.  But we now have
> version tracking for glibc (since PG13), FreeBSD (since PG14), and
> Windows (since PG13), so this is useful to have now.

calliphoridae does not like this one:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=calliphoridae&dt=2022-02-14%2007%3A41%3A13

 SELECT current_database() AS datname \\gset
 ALTER DATABASE :"datname" REFRESH COLLATION VERSION;
-NOTICE:  version has not changed
+ERROR:  unrecognized node type: 291

Worth noting that it uses -DDCOPY_PARSE_PLAN_TREES and
-DRAW_EXPRESSION_COVERAGE_TEST, so you may have missed a piece in this
area.
--
Michael