Matthias van de Meent <boekewurm+postg...@gmail.com> writes: > I like the idea of the ZSON type, but I'm somewhat disappointed by its > current limitations:
I've not read the code, so maybe this thought is completely off-point, but I wonder if anything could be learned from PostGIS. AIUI they have developed the infrastructure needed to have auxiliary info (particularly, spatial reference data) attached to a geometry column, without duplicating it in every value of the column. Seems like that is a close analog of what's needed here. regards, tom lane