Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Tom Lane wrote:
>> Yes. The release notes mention:
>> SERIAL no longer implies UNIQUE; specify explicitly if index is wanted
> What was the logic for this change?
See the thread back around 17 Aug:
http://archives.postgresql.org/pgsql-hackers/2002-08/msg01336.php
regards, tom lane