Stefan,
> Is there any way to get system maintained keys from postgres? e.g. to
> have a table with a primary key column (varchar or int) and let
> postgres
> chose the next unique value for this column?
Please address future questions of this type to the PGSQL-NOVICE list.
PGSQL-SQL is for more advanced SQL issues.
Yes, you can do this easily, Please see:
http://www.postgresql.org/idocs/index.php?datatype.html#DATATYPE-NUMERIC
Look at secion 3.1.1 on the page.
-Josh
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