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<font face="Helvetica, Arial, sans-serif">Well done!<br>
<br>
You're right, I changed my search path excluding "public" from it
before playing the query.<br>
If I add "public" in the search path, it works fine again.<br>
<br>
Cedric<br>
</font><br>
<div class="moz-cite-prefix">Le 08/01/2026 à 18:14, Regina Obe a
écrit :<br>
</div>
<blockquote type="cite" cite="mid:003101dc80c2$51956bf0$f4c043d0$@pcorp.us">
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<p class="MsoNormal">Cedric,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Good news. I was able to replicate.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I noticed in your output you have the fully
qualified type name, which means you don’t have postgis schema
in your search path.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To replicate I did:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">set search_path='pg_catalog';<o:p></o:p></p>
<p class="MsoNormal">SELECT 'POINT EMPTY'::public.geometry =
'POINT EMPTY'::public.geometry;<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Gives:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">ERROR: operator is not unique:
public.geometry = public.geometry LINE 1: SELECT 'POINT
EMPTY'::public.geometry = 'POINT EMPTY'::publi... ^<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So I’m guessing we have some code in our =
path that is not schema qualified.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve ticketed the issue here:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a href="https://trac.osgeo.org/postgis/ticket/6033" moz-do-not-send="true" class="moz-txt-link-freetext">https://trac.osgeo.org/postgis/ticket/6033</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Paul,<o:p></o:p></p>
<p class="MsoNormal">Can you confirm you can replicate by
changing your search_path?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Cedric Duprez <a class="moz-txt-link-rfc2396E" href="mailto:cedric.duprez@ign.fr"><cedric.duprez@ign.fr></a> <br>
<b>Sent:</b> Thursday, January 8, 2026 12:05 PM<br>
<b>To:</b> Regina Obe <a class="moz-txt-link-rfc2396E" href="mailto:lr@pcorp.us"><lr@pcorp.us></a>; 'Paul
Ramsey' <a class="moz-txt-link-rfc2396E" href="mailto:pramsey@cleverelephant.ca"><pramsey@cleverelephant.ca></a><br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:postgis-users@lists.osgeo.org">postgis-users@lists.osgeo.org</a><br>
<b>Subject:</b> Re: PostGIS 3.6.1 - ERROR: operator is
not unique: public.geometry = public.geometry<o:p></o:p></span></p>
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</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">I get two
lines with the following query:<br>
<br>
SELECT oprcode, <a href="oprleft::regtype" moz-do-not-send="true" class="moz-txt-link-freetext">oprleft::regtype</a>,
<a href="oprright::regtype" moz-do-not-send="true" class="moz-txt-link-freetext">oprright::regtype</a><br>
FROM pg_catalog.pg_operator<br>
WHERE oprname = '=' AND <a href="oprleft::regtype::text" moz-do-not-send="true" class="moz-txt-link-freetext">oprleft::regtype::text</a>
IN('public.geometry', 'public.geography')<br>
ORDER BY oprleft, oprright;<br>
<br>
Query result:<br>
<br>
oprcode |oprleft |oprright <br>
-------------------+----------------+----------------<br>
public.geometry_eq |public.geometry |public.geometry <br>
public.geography_eq|public.geography|public.geography<br>
<br>
Extensions are :<br>
<br>
extname |extversion<br>
------------------+----------<br>
plpgsql |1.0 <br>
ogr_fdw |1.1 <br>
plr |8.4.8.2 <br>
pg_stat_statements|1.11 <br>
pgcrypto |1.3 <br>
tablefunc |1.0 <br>
postgis_raster |3.6.1 <br>
postgis |3.6.1 <o:p></o:p></p>
<div>
<p class="MsoNormal">Le 08/01/2026 à 17:58, Regina Obe a
écrit :<o:p></o:p></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">I can’t replicate on my PostgreSQL 17.7
either even with upgrading from PostGIS 3.5.3 to 3.6.1<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">PostgreSQL 17.7 on x86_64-windows,
compiled by msvc-19.44.35221, 64-bit POSTGIS="3.6.1 3.6.1"
[EXTENSION] PGSQL="170" GEOS="3.14.1-CAPI-1.20.5"
PROJ="8.2.1 NETWORK_ENABLED=OFF URL_ENDPOINT=<a href="https://cdn.proj.org" moz-do-not-send="true" class="moz-txt-link-freetext">https://cdn.proj.org</a>
USER_WRITABLE_DIRECTORY=<a href="file:///C:/Windows/ServiceProfiles/NetworkService/AppData/Local/proj" moz-do-not-send="true">C:\Windows\ServiceProfiles\NetworkService\AppData\Local/proj</a>
DATABASE_PATH=<a href="file:///C:/Program" moz-do-not-send="true">C:\Program</a>
Files\PostgreSQL\18\share\contrib\postgis-3.6\proj\proj.db"
(compiled against PROJ 8.2.1) LIBXML="2.12.5"
LIBJSON="0.12" LIBPROTOBUF="1.2.1" WAGYU="0.5.0
(Internal)"<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Perhaps you are having a conflict with
another extension or it’s issue with upgrade from
earlier. I recall we did have to fix an issue with = <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Can you show what the below queries
output:<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">SELECT oprcode, <a href="oprleft::regtype" moz-do-not-send="true" class="moz-txt-link-freetext">oprleft::regtype</a>, <a href="oprright::regtype" moz-do-not-send="true" class="moz-txt-link-freetext">oprright::regtype</a> <o:p></o:p></p>
<p class="MsoNormal">FROM pg_catalog.pg_operator <o:p></o:p></p>
<p class="MsoNormal">WHERE oprname = '=' AND <a href="oprleft::regtype::text" moz-do-not-send="true" class="moz-txt-link-freetext">oprleft::regtype::text</a>
IN('geometry', 'geography')<o:p></o:p></p>
<p class="MsoNormal">ORDER BY oprleft, oprright;<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Should be:<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> oprcode | oprleft | oprright<o:p></o:p></p>
<p class="MsoNormal">--------------+-----------+-----------<o:p></o:p></p>
<p class="MsoNormal">geometry_eq | geometry | geometry<o:p></o:p></p>
<p class="MsoNormal">geography_eq | geography | geography<o:p></o:p></p>
<p class="MsoNormal">(2 rows)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">SELECT extname, extversion FROM
pg_catalog.pg_extension;<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Paul Ramsey via postgis-users <a href="mailto:postgis-users@lists.osgeo.org" moz-do-not-send="true"><postgis-users@lists.osgeo.org></a>
<br>
<b>Sent:</b> Thursday, January 8, 2026 11:26 AM<br>
<b>To:</b> Cedric Duprez <a href="mailto:cedric.duprez@ign.fr" moz-do-not-send="true"><cedric.duprez@ign.fr></a><br>
<b>Cc:</b> <a href="mailto:postgis-users@lists.osgeo.org" moz-do-not-send="true" class="moz-txt-link-freetext">postgis-users@lists.osgeo.org</a><br>
<b>Subject:</b> Re: PostGIS 3.6.1 - ERROR:
operator is not unique: public.geometry =
public.geometry</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">This is odd, I am not able to
replicate...<o:p></o:p></p>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>
POSTGIS="3.6.1dev 3.6.0-6-gdb18a9a49" PGSQL="180"
GEOS="3.15.0dev-CAPI-1.21.0" PROJ="9.3.0
NETWORK_ENABLED=ON URL_ENDPOINT=<a href="https://cdn.proj.org" moz-do-not-send="true" class="moz-txt-link-freetext">https://cdn.proj.org</a>
USER_WRITABLE_DIRECTORY=/Users/pramsey/Library/Application Support/proj
DATABASE_PATH=/usr/local/share/proj/proj.db"
(compiled against PROJ 9.3.0) LIBXML="2.9.13"
LIBJSON="0.17" LIBPROTOBUF="1.4.1" WAGYU="0.5.0
(Internal)"<br>
(1 row)<br>
<br>
postgis_reg=# SELECT 'POINT EMPTY'::public.geometry
= 'POINT EMPTY'::public.geometry;<br>
?column? <br>
----------<br>
t<br>
(1 row)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Is this a database that has gone
through upgrade stages, or a blank fresh database?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">P<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div>
<p class="MsoNormal">On Thu, Jan 8, 2026 at 8:21<span style="font-family:"Arial",sans-serif"> </span>AM
Cedric Duprez <<a href="mailto:cedric.duprez@ign.fr" moz-do-not-send="true" class="moz-txt-link-freetext">cedric.duprez@ign.fr</a>>
wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hi all,<br>
<br>
I'm facing a potential bug with PostGIS 3.6.1 on
PostgreSQL 17.7.<br>
Here is what I get with postgis_full_version() :
POSTGIS="3.6.1 f533623" [EXTENSION] PGSQL="170"
GEOS="3.12.1-CAPI-1.18.1" PROJ="9.4.0
NETWORK_ENABLED=OFF URL_ENDPOINT=<a href="https://cdn.proj.org" target="_blank" moz-do-not-send="true" class="moz-txt-link-freetext">https://cdn.proj.org</a>
USER_WRITABLE_DIRECTORY=/tmp/proj
DATABASE_PATH=/usr/share/proj/proj.db" (compiled
against PROJ 9.4.0) GDAL="GDAL 3.8.4, released
2024/02/08" LIBXML="2.9.14" LIBJSON="0.17"
LIBPROTOBUF="1.4.1" WAGYU="0.5.0 (Internal)"
RASTER<br>
<br>
When I execute this query: <br>
SELECT 'POINT EMPTY'::public.geometry = 'POINT
EMPTY'::public.geometry;<br>
I get the following error:<br>
ERROR: operator is not unique: public.geometry =
public.geometry<br>
<br>
It seems to be a regression, since I didn't have
this error on previous versions of PostGIS (3.5).<br>
<br>
How can this problem be solved?<br>
Thanks in advance for you help,<br>
<br>
Cedric <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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