> > 1. How do you remove one of two identical rows
> > from a pgsql table ?
>
> DELETE FROM t1 WHERE .... wil do the stuff for you. If you don't know
> the value into the duplicate field just export the database with pg_dump
> create
> a unique index onto this field and reimport all your data. Duplicate
> data will
> not be inserted.
Another way could be to
SELECT oid FROM table WHERE ...;
and then delete based on that. However I believe it is possible to have two
rows have the same oid but usually that isn't the case.
