[postgis-users] Error: "Precision reduction requires GEOS-3.9 or higher"

[Marco Boeringa]

It also appears someone else already raised this issue recently:

https://www.postgresql.org/message-id/CAB2Z92DeQM2mjfMGfoWadp7OegfqMGi_sO_VE8%3Dt0WUWGa%2B6VQ%40mail.gmail.com

Reading through the thread, the next Debian release at the end of 2021 
should ship with GEOS 3.9.0. As I understood it, Ubuntu packaging 
follows on after Debian, isn't it? So general availability is likely at 
the end of this year at the earliest... A bit of patience is still 
needed I guess.

Marco

Op 18-4-2021 om 21:02 schreef Marco Boeringa:
> Hi Paul,
>
> Thanks, yes, I was suspecting something like this, just wasn't 
> entirely sure given my limited experience with Ubuntu up to now.
>
> Marco
>
> Op 18-4-2021 om 20:10 schreef Paul Ramsey:
>> We aren't the pgdg packers, so we cannot answer that for you, but 
>> there is a list you could ask...
>>
>> https://www.postgresql.org/about/news/pgdg-apt-repository-for-debianubuntu-1432/ 
>>
>>
>> It's probably just an oversight.
>>
>> P
>>
>>> On Apr 18, 2021, at 5:42 AM, Marco Boeringa 
>>> <marco at boeringa.demon.nl> wrote:
>>>
>>> Hi Sandro,
>>>
>>> Thanks for the answer, but this just raises a question, why was the 
>>> official PostGIS 3.1.1 as available in the
>>>
>>> "http://apt.postgresql.org/pub/repos/apt/focal-pgdg main"
>>>
>>> repository, not compiled with GEOS 3.9.0, if it is supposed to be 
>>> able to take advantage of new GEOS 3.9.0 functionality?
>>>
>>> Of course, I understand GEOS 3.9.0 was not available at the time 
>>> Ubuntu Focal 20.04 LTS was launched, but neither was PostGIS 3.1.1. 
>>> Yet PostGIS was updated to 3.1.1 on Focal through the PostgreSQL 
>>> repository for Focal?
>>>
>>> Or would a PostGIS 3.1.1 compiled against GEOS 3.9.0 cause issues on 
>>> a default Ubuntu Focal install with just GEOS 3.8.0, due to 
>>> incompatibilities?
>>>
>>> Sorry if I am rambling and this doesn't make sense. Although I am 
>>> slowly getting to know Linux and Ubuntu, some of this packaging and 
>>> repository stuff is still a bit of a mystery to me...
>>>
>>> Marco
>>>
>>> Op 18-4-2021 om 14:21 schreef Sandro Santilli:
>>>> On Sat, Apr 17, 2021 at 09:01:33AM +0200, Marco Boeringa wrote:
>>>>
>>>>> Before I upgraded libgeos from the ubuntugis repository,
>>>>> "PostGIS_Full_Version()" showed GEOS 3.8.0.
>>>>>
>>>>> So how do I potentially solve this? Or is this upgrade of GEOS 
>>>>> only possible
>>>>> by compiling PostGIS from source yourself (which I would 
>>>>> definitely like to
>>>>> avoid)?
>>>> No way out of compiling PostGIS from source.
>>>> It could be done by you or by some third party who could have made
>>>> a package for your OS available.
>>>>
>>>> --strk;
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