Is there any work being done on the PostgreSQL version? There has been no activity in the Github repository for four years, and I'm getting the same error as reported in https://github.com/Roenbaeck/anchor/issues/92, although in my case the uncaught reference is to "knot" rather than "attribute."
I'm willing to try to contribute to the development, but I'd like to get a better idea of where things stand first.
