Per Issue #12, have the Makefile bail out if the user is trying to build
on an unsupported Postgres version. Also, some further removal of macros
purportedly handling older PG versions which are no longer needed, and
were missed in 370e572.
there are views or functions depending on columns after dropped ones.
The issue was reported by depesz, and original patch by Denish Patel.
Improved documentation how to build binaries from source.
COPYRIGHT updated.
have a primary key. Some of users want to use not-null unique keys rather than
primary keys because postgres doesn't support REINDEX PRIMARY KEY CONCURRENTLY.
- Support 9.1dev.
- Improve Makefile to use PGXS automatically.
