[postgis-devel] PostGIS 2.5 what should be minimum requirements?

[Bborie Park]

+1 for the above. I'm hoping to get back into the mess in November/December
with a focus on parallelism/performance and 9.6 will be required.

On Fri, Sep 29, 2017 at 7:40 AM, Regina Obe <lr at pcorp.us> wrote:

> While we are still in infancy of PostGIS 2.5 (and probably at least a year
> away from release), I'd like to get requirements out of the way and propose
> the following:
>
> 1) Drop support for PostgreSQL 9.4 and 9.5  (so PostgreSQL 9.6 - PostgreSQL
> 11 will be supported)
> 9.4 has the main annoyance of not supporting true KNN and I'm tired of
> explaining this to folks and having people with pg_upgrading from these
> lowers being screwed when upgrading because they can no longer do
>
> ALTER EXTENSION ...  cause they are already at 2.5.0
>
> 9.5 doesn't support Parallelism and I suspect we may need to do some
> restructuring for some aggs in 2.5, I'd just assume not have to make
> special
> concessions for folks trying to pg_upgrade from a PostgreSQL 9.5 2.5
> extension to 9.6+
>
> 2) Make GEOS 3.5+ the minimum (for 2.4  GEOS 3.4 was the minimum)  - we've
> got too much stuff that requires 3.5 already that is turned off for lower
> and newer GEOS has some robustness improvements.
>
> 3) Make Proj 4.9+ the minimum currently our minimum is proj 4.7 I think.
> As
> discussed it's on the table to redo some of the geography stuff like
> ST_Segmentize using proj 4.9+ features.
>
>
> Anyone have issues with the above?
>
> PSC folks, if you are okay with all the above please give a +1
>
> If you are okay with some and not others, I can break apart so we can at
> least decide on some pieces.
>
>
> Thanks,
> Regina
>
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