Re: postgis update from 2.5 to 3

Am Di., 12. Nov. 2019 um 15:39 Uhr schrieb Christoph Berg <myon(at)debian(dot)org>:

> Re: Michael Böhm 2019-11-12 <CAKJYtEQVW=
> V3wG9wX4nBoX9Rqti3PfJ7qANNdjO5ztF_3JyZSA(at)mail(dot)gmail(dot)com>
> > As always i wanted to install the newer version beside the current one
> and
> > then do the extension upgrade in postgres. Problem is that installing the
> > package "postgresql-10-postgis-3-scripts" tries to overwrite some files
> > already provided by " postgresql-10-postgis-2.5-scripts":
> >
> > »/usr/share/postgresql/10/applications/shp2pgsql-gui.desktop«
> > »/usr/share/postgresql/10/icons/hicolor/16x16/apps/shp2pgsql-gui.png«
>
> Meh. PostGIS installs files in way too many weird places.
>
> > 1. Removing all 2.5-packages, then installing 3 was one solution, but
> > "ALTER EXTENSION postgis UPDATE;" afterwards wasn't possible as it
> > complained about the missing 2.5-scripts-folder
>
> Interesting... I would have thought that upgrading didn't need the old
> files.
>

Well it looked like this:

edugis=# SELECT PostGIS_full_version();
FEHLER: konnte nicht auf Datei »$libdir/postgis-2.5« zugreifen: Datei oder
Verzeichnis nicht gefunden
KONTEXT: SQL-Anweisung »SELECT public.postgis_lib_version()«
PL/pgSQL-Funktion postgis_full_version() Zeile 26 bei SQL-Anweisung

edugis=# ALTER EXTENSION postgis UPDATE;
WARNUNG: unpackaging raster
WARNUNG: PostGIS Raster functionality has been unpackaged
TIP: type `SELECT postgis_extensions_upgrade(); to finish the upgrade.
After upgrading, if you want to drop raster, run: DROP EXTENSION
postgis_raster;
FEHLER: konnte nicht auf Datei »$libdir/postgis-2.5« zugreifen: Datei oder
Verzeichnis nicht gefunden
KONTEXT: PL/pgSQL-Funktion _postgis_drop_function_if_needed(text,text)
Zeile 6 bei FOR über SELECT-Zeilen

edugis=# SELECT PostGIS_Extensions_Upgrade();
WARNUNG: unpackaging raster
WARNUNG: PostGIS Raster functionality has been unpackaged
TIP: type `SELECT postgis_extensions_upgrade(); to finish the upgrade.
After upgrading, if you want to drop raster, run: DROP EXTENSION
postgis_raster;
FEHLER: konnte nicht auf Datei »$libdir/postgis-2.5« zugreifen: Datei oder
Verzeichnis nicht gefunden
KONTEXT: PL/pgSQL-Funktion _postgis_drop_function_if_needed(text,text)
Zeile 6 bei FOR über SELECT-Zeilen
SQL-Anweisung »ALTER EXTENSION postgis UPDATE TO "3.0.0";«
PL/pgSQL-Funktion postgis_extensions_upgrade() Zeile 22 bei EXECUTE

edugis=# DROP EXTENSION postgis_raster;
FEHLER: Erweiterung »postgis_raster« existiert nicht

edugis=# SELECT PostGIS_full_version();
FEHLER: konnte nicht auf Datei »$libdir/postgis-2.5« zugreifen: Datei oder
Verzeichnis nicht gefunden
KONTEXT: SQL-Anweisung »SELECT public.postgis_lib_version()«
PL/pgSQL-Funktion postgis_full_version() Zeile 26 bei SQL-Anweisung

After that i reverted to the snapshot i made before and tried option 2.

> > 2. Installing postgis-3(-scripts) with "-o
> > Dpkg::Options::="--force-overwrite"" was successful and i could finish
> the
> > upgrade with "ALTER EXTENSION postgis UPDATE;" and "SELECT
> > PostGIS_Extensions_Upgrade();"
>
> That's the workaround I would have suggested, yes.
>
> > Is this a packaging-bug, everything working as expected or did i mess up?
>
> Packaging bug. I thought I had tested that, but apparently I had
> tested something else. I wonder how I missed that given that
> postgresql-10-postgis-3 does depend on postgresql-10-postgis-3-scripts
> now, and same for the -2.5 packages. Maybe the problem is only with
> older packages.
>
> Which versions of the -2.5 and -3 packages exactly did you use?
>

Well i always try to update asap so before i had:
ii postgresql-10-postgis-2.5 2.5.3+dfsg-2.pgdg100+1
ii postgresql-10-postgis-2.5-scripts 2.5.3+dfsg-2.pgdg100+1
and now
ii postgresql-10-postgis-3 3.0.0+dfsg-2~exp1.pgdg100+1
ii postgresql-10-postgis-3-scripts 3.0.0+dfsg-2~exp1.pgdg100+1

>
> Thanks for reporting,
> Christoph
>

No problem, if i need to find a workaround for myself and nothing comes up
from the depth of the web i like to somehow let people know.