[postgis-users] Adding a position (direction) attribute to a point feature

[Sandro Santilli]

On Sun, Nov 12, 2017 at 04:13:31PM +0200, Zizi Jama wrote:
> I have a a point feature (representing street signs).
> 
> I would like to do the following:
> 
> 1. add street segment name to the point feature (I will create a buffer
> around my street segment and perform a spatial join)
> 
> 2. add on which side of the street segment is the point feature located
> (options are left, right, centre), this is where I stuck - what would be
> the best approach to deal with my use case

You could use ST_OffsetCurve and see how distance changes:
https://postgis.net/docs/ST_OffsetCurve.html

--strk;