This is the right approach, Peter J. Holzer, from a well season DBA
perspective "ALTER TABLE working_table
ADD COLUMN B INTEGER ; UPDATE working_table
SET B = A;"
Bare in mind the indexes or existing references to an from other tables and
act accordingly-- define the new and drop the old.
Good lu
CREATE EXTENSION cube;
I do not know if you might need this one as well. I am assuming that you
are working on a gist server.
CREATE EXTENSION earthdistance;
I am assuming you are working with a gist server. This ought to be useful.
https://gist.cs.berkeley.edu/pggist/
You might want to read t
