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permissions - PostgreSQL revokes all privileges on all entities of extension, being created

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permissions - PostgreSQL revokes all privileges on all entities of extension, being created

This question follows up my another question ERROR: permission denied for function geography_eq

What PostgreSQL should do by default with permissions on entities of extension, being created?

Here is a case.

Initially my database cluster was managed by PostgreSQL 11 installation in Docker container, created from postgres-11 image.

I needed to store GPS coordinates., so, I have changed Docker container from postgres to postgis/postgis:11-2.5-alpine.

Added extension:

CREATE EXTENSION postgis;

Created a dump and noticed, that privileges on all functions from PostGIS are revoked for all roles:

--
-- Name: FUNCTION geog_brin_inclusion_add_value(internal, internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geog_brin_inclusion_add_value(internal, internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_compress(internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_compress(internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_consistent(internal, public.geography, integer); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_consistent(internal, public.geography, integer) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_decompress(internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_decompress(internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_distance(internal, public.geography, integer); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_distance(internal, public.geography, integer) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_penalty(internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_penalty(internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_picksplit(internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_picksplit(internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_same(public.box2d, public.box2d, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_same(public.box2d, public.box2d, internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gist_union(bytea, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gist_union(bytea, internal) FROM PUBLIC;


--
-- Name: FUNCTION geography_gt(public.geography, public.geography); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_gt(public.geography, public.geography) FROM PUBLIC;


--
-- Name: FUNCTION geography_le(public.geography, public.geography); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_le(public.geography, public.geography) FROM PUBLIC;


--
-- Name: FUNCTION geography_lt(public.geography, public.geography); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_lt(public.geography, public.geography) FROM PUBLIC;


--
-- Name: FUNCTION geography_overlaps(public.geography, public.geography); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geography_overlaps(public.geography, public.geography) FROM PUBLIC;


--
-- Name: FUNCTION geom2d_brin_inclusion_add_value(internal, internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geom2d_brin_inclusion_add_value(internal, internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geom3d_brin_inclusion_add_value(internal, internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geom3d_brin_inclusion_add_value(internal, internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geom4d_brin_inclusion_add_value(internal, internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geom4d_brin_inclusion_add_value(internal, internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry(bytea); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(bytea) FROM PUBLIC;


--
-- Name: FUNCTION geometry(path); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(path) FROM PUBLIC;


--
-- Name: FUNCTION geometry(point); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(point) FROM PUBLIC;


--
-- Name: FUNCTION geometry(polygon); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(polygon) FROM PUBLIC;


--
-- Name: FUNCTION geometry(text); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(text) FROM PUBLIC;


--
-- Name: FUNCTION geometry(public.box2d); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(public.box2d) FROM PUBLIC;


--
-- Name: FUNCTION geometry(public.box3d); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(public.box3d) FROM PUBLIC;


--
-- Name: FUNCTION geometry(public.geography); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(public.geography) FROM PUBLIC;


--
-- Name: FUNCTION geometry(public.geometry, integer, boolean); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry(public.geometry, integer, boolean) FROM PUBLIC;


--
-- Name: FUNCTION geometry_above(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_above(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_below(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_below(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_cmp(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_cmp(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_contained_3d(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_contained_3d(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_contained_by_raster(public.geometry, public.raster); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_contained_by_raster(public.geometry, public.raster) FROM PUBLIC;


--
-- Name: FUNCTION geometry_contains(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_contains(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_contains_3d(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_contains_3d(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_distance_box(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_distance_box(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_distance_centroid(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_distance_centroid(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_distance_centroid_nd(public.geometry, public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_distance_centroid_nd(public.geometry, public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_distance_cpa(public.geometry, public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_distance_cpa(public.geometry, public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_eq(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_eq(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_ge(geom1 public.geometry, geom2 public.geometry); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_ge(geom1 public.geometry, geom2 public.geometry) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_compress_2d(internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_compress_2d(internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_compress_nd(internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_compress_nd(internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_consistent_2d(internal, public.geometry, integer); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_consistent_2d(internal, public.geometry, integer) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_consistent_nd(internal, public.geometry, integer); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_consistent_nd(internal, public.geometry, integer) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_decompress_2d(internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_decompress_2d(internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_decompress_nd(internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_decompress_nd(internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_distance_2d(internal, public.geometry, integer); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_distance_2d(internal, public.geometry, integer) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_distance_nd(internal, public.geometry, integer); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_distance_nd(internal, public.geometry, integer) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_penalty_2d(internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_penalty_2d(internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_penalty_nd(internal, internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_penalty_nd(internal, internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_picksplit_2d(internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_picksplit_2d(internal, internal) FROM PUBLIC;


--
-- Name: FUNCTION geometry_gist_picksplit_nd(internal, internal); Type: ACL; Schema: public; Owner: postgres
--

REVOKE ALL ON FUNCTION public.geometry_gist_picksplit_nd(internal, intern

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The only possibility for that in standard PostgreSQL is that the default privileges for functions have been changed.

In particular, if the extension is create by user postgres, someone must have issued this at an earlier point:

ALTER DEFAULT PRIVILEGES FOR ROLE postgres
   REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC;

You can see that with ddp in psql, but also with a metadata query:

ddp

             Default access privileges
  Owner   | Schema |   Type   |  Access privileges  
----------+--------+----------+---------------------
 postgres |        | function | postgres=X/postgres
(1 row)

SELECT defaclrole::regrole AS user,
       defaclnamespace::regnamespace AS schema,
       defaclobjtype,
       defaclacl
FROM pg_default_acl;

   user   | schema | defaclobjtype |       defaclacl       
----------+--------+---------------+-----------------------
 postgres | -      | f             | {postgres=X/postgres}
(1 row)

To undo that change, run

ALTER DEFAULT PRIVILEGES FOR ROLE postgres
   GRANT EXECUTE ON FUNCTIONS TO PUBLIC;

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