[postgis-devel] Precision Reduction?

[Sandro Santilli]

On Wed, Nov 11, 2020 at 05:50:30PM +0100, rmrodriguez at carto.com wrote:
> Is this something we want to tackle before GEOS 3.9 and Postgis 3.1?
> 
> It seems like this is something that needs quite a bit of development,
> with some important decisions to be made, plus a lot of testing. I'm
> more inclined to add the low hanging fruits right now (precision
> reducer functions and so on) and wait for the full set of new features
> (stored precision, precision in overlay operations with different
> source precisions and so on) for the next release (in a year), but I'm
> interested in hearing what your opinions are in this.

My concern is that if in a year from now we make ST_PrecisionReduce
set a precision configuration in a Geometry it'll be a behavioural
change. But I guess we can always add, in the future, an optional parameter
to make the precision change encoded, so... feel free to go for it.

--strk;