In our app we are using several CRS - one of them is a custom one. I'd like to turn it into a proper CRS that PostGIS can fully support (e.g. administering valid transformations on it with something like
How would one do that?
I couldn't find any reference on this online. I found one for Oracle here - seems to be very detailed, transparent and straightforward process. What would be an alternative of this process in case of PostGIS?