On Thursday, March 26, 2026, Sérgio Duarte <
duartes@gmail.com> wrote:
version
PostgreSQL 16.11 (Debian 16.11-1.pgdg12+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14+deb12u1) 12.2.0, 64-bit
create extension if not exists postgis with schema sigop;
Query execution failed
Reason:
SQL Error [42501]: ERROR: permission denied to create "pg_catalog.geometry_dump"
Detail: System catalog modifications are currently disallowed.
This seems more likely to be user-error than a bug. At minimum you will need to specify the version of PostGIS you are installing in addition to the platform and server into which it is being installed. I’m also pretty sure you don’t get to specify “with schema”. You probably need to re-read the instructions for how to install PostGIS and follow them exactly. That will likely result in an error-free installation. If not, you probably should report any issues to them. If they have an issue with the core server they can then report it here.
David J.
