Schema Upgrade Howto

Hi,

is there a schema upgrade howto? I could not find much with google.

There is a running DB and a development DB. The development DB
has some tables, columns and indexes added. What is the preferred way
to upgrade?

I see these solutions:
 - pg_dump production DB. Install schema only from dev DB, restore data
only from dump.
 - Use alter table.
 - Use a tool like apgdiff (never tried it).

I guess all ways will be possible. But what do you suggest?

  Thomas


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Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de