When did this 'officially' change? "SQL-MM defines the default SRID of all geometry constructors as 0. PostGIS uses a default SRID of -1."

[Paul Ramsey]

PostGIS 2.0? 14 years ago

https://github.com/postgis/postgis/blob/master/NEWS#L1937

Wheeps, that's a long-time doo error.

P.

On Fri, Jan 30, 2026 at 11:31 AM Michael Downey via postgis-users <
postgis-users at lists.osgeo.org> wrote:

> Hello,
>
>
>
> I see this note
>
> “SQL-MM defines the default SRID of all geometry constructors as 0.
> PostGIS uses a default SRID of -1" on the
> PostGIS_Special_Functions_Index.html page all the way though 3.2
>
> https://postgis.net/docs/manual-3.2/PostGIS_Special_Functions_Index.html
>
>
>
> Since then it is not there.
>
>
>
> I have not checked this question under versions < 3.4. AI results indicate
> that it was 3.0 when it started. A question from a user in our community
> indicates 2.0.
>
>
>
> Perhaps it started at an earlier time and culminated at 3.3?
>
>
>
> Thanks,
>
> Michael
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20260130/6e5a7a4f/attachment.htm>