[postgis-users] ST_Maxdistance schema hardcoding error

Philip M. Hurvitz phurvitz at uw.edu
Mon Jul 15 13:39:48 PDT 2019


Thank you, Regina. I was on 2.4.7. I did the yo-yo

ALTER EXTENSION postgis UPDATE TO "2.4.7next";
ALTER EXTENSION postgis UPDATE;


and the functions now work as expected.

________________________________
Philip M. Hurvitz
Research Assistant Professor, Urban Design and Planning
Research Scientist, Civil Engineering (TRAC)
http://gis.washington.edu/phurvitz/contact
________________________________
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Today's Topics:

   1. ST_Maxdistance schema hardcoding error (Philip M. Hurvitz)
   2. Re: ST_Maxdistance schema hardcoding error (Regina Obe)


----------------------------------------------------------------------

Message: 1
Date: Fri, 12 Jul 2019 18:52:46 +0000
From: "Philip M. Hurvitz" <phurvitz at uw.edu><mailto:phurvitz at uw.edu>
To: "postgis-users at lists.osgeo.org"<mailto:postgis-users at lists.osgeo.org> <postgis-users at lists.osgeo.org><mailto:postgis-users at lists.osgeo.org>,
        "postgis-devel at lists.osgeo.org"<mailto:postgis-devel at lists.osgeo.org> <postgis-devel at lists.osgeo.org><mailto:postgis-devel at lists.osgeo.org>
Subject: [postgis-users] ST_Maxdistance schema hardcoding error
Message-ID: <41b115ea-ef9e-0129-918f-83f49571ab2b at uw.edu><mailto:41b115ea-ef9e-0129-918f-83f49571ab2b at uw.edu>
Content-Type: text/plain; charset="utf-8"

Hi all, I found that ST_MaxDistance() was failing for a database that had the PostGIS extension installed in the schema 'postgis'.

SELECT ST_MaxDistance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
ERROR:  function public.st_convexhull(geometry) does not exist
LINE 1: SELECT public._ST_MaxDistance(public.ST_ConvexHull($1), publ...
                                      ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  SELECT public._ST_MaxDistance(public.ST_ConvexHull($1), public.ST_ConvexHull($2))
CONTEXT:  SQL function "st_maxdistance" during startup
Time: 147.448 ms


It seems that the function is expecting to find the ST_ConvexHull function in the public schema.

As a workaround I edited the code for the _ST_MaxDistance and ST_ConvexHull to create identical functions in the public schema and now things work as expected:

SELECT ST_MaxDistance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
 st_maxdistance
----------------
              2


I had originally installed PostGIS in the public schema but then relocated the extension to the postgis schema -- could this be the reason? Other functions are acting strangely, e.g., postgis_version works OK

select postgis_version();
            postgis_version
---------------------------------------
 2.4 USE_GEOS=1 USE_PROJ=1 USE_STATS=1


but postgis_full_version fails

select postgis_full_version();
ERROR:  function public.postgis_lib_version() does not exist
LINE 1: SELECT public.postgis_lib_version()
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  SELECT public.postgis_lib_version()
CONTEXT:  PL/pgSQL function postgis_full_version() line 25 at SQL statement


Does anyone know if there is a fix for rewriting the functions that are looking in public for functions that are located in the postgis schema?

Thanks for any info!
--
________________________________
Philip M. Hurvitz
Research Assistant Professor, Urban Design and Planning
Research Scientist, Civil Engineering (TRAC)
http://gis.washington.edu/phurvitz/contact
________________________________
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Message: 2
Date: Fri, 12 Jul 2019 19:05:35 -0400
From: "Regina Obe" <lr at pcorp.us><mailto:lr at pcorp.us>
To: "'PostGIS Users Discussion'" <postgis-users at lists.osgeo.org><mailto:postgis-users at lists.osgeo.org>,
        <postgis-devel at lists.osgeo.org><mailto:postgis-devel at lists.osgeo.org>
Subject: Re: [postgis-users] ST_Maxdistance schema hardcoding error
Message-ID: <000801d53906$5526a280$ff73e780$@pcorp.us><mailto:000801d53906$5526a280$ff73e780$@pcorp.us>
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How did you move the extension?



And which version are you running.  Since 2.3, PostGIS functions are schema qualified.



The easiest way is to force a reinstall.

ALTER EXTENSION  postgis UPDATE;



Should work if you are not running the latest version (one listed in your postgis.control).



If it gives you an error something like



NOTICE: version "2.5.2" of extension "postgis" is already installed



Then you can do what I call the yo-yo hack



ALTER EXTENSION postgis UPDATE TO "2.5.2next";;



Followed by

ALTER EXTENSION postgis UPDATE TO "2.5.2";



From: postgis-users [mailto:postgis-users-bounces at lists.osgeo.org] On Behalf Of Philip M. Hurvitz
Sent: Friday, July 12, 2019 2:53 PM
To: postgis-users at lists.osgeo.org<mailto:postgis-users at lists.osgeo.org>; postgis-devel at lists.osgeo.org<mailto:postgis-devel at lists.osgeo.org>
Subject: [postgis-users] ST_Maxdistance schema hardcoding error



Hi all, I found that ST_MaxDistance() was failing for a database that had the PostGIS extension installed in the schema 'postgis'.

SELECT ST_MaxDistance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
ERROR:  function public.st_convexhull(geometry) does not exist
LINE 1: SELECT public._ST_MaxDistance(public.ST_ConvexHull($1), publ...
                                      ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  SELECT public._ST_MaxDistance(public.ST_ConvexHull($1), public.ST_ConvexHull($2))
CONTEXT:  SQL function "st_maxdistance" during startup
Time: 147.448 ms

It seems that the function is expecting to find the ST_ConvexHull function in the public schema.

As a workaround I edited the code for the _ST_MaxDistance and ST_ConvexHull to create identical functions in the public schema and now things work as expected:

SELECT ST_MaxDistance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
 st_maxdistance
----------------
              2

I had originally installed PostGIS in the public schema but then relocated the extension to the postgis schema -- could this be the reason? Other functions are acting strangely, e.g., postgis_version works OK

select postgis_version();
            postgis_version
---------------------------------------
 2.4 USE_GEOS=1 USE_PROJ=1 USE_STATS=1

but postgis_full_version fails

select postgis_full_version();
ERROR:  function public.postgis_lib_version() does not exist
LINE 1: SELECT public.postgis_lib_version()
               ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
QUERY:  SELECT public.postgis_lib_version()
CONTEXT:  PL/pgSQL function postgis_full_version() line 25 at SQL statement

Does anyone know if there is a fix for rewriting the functions that are looking in public for functions that are located in the postgis schema?



Thanks for any info!


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