do a \d tablename

for the name of the contraint.
say its $1
the do

psql> alter table <tablename> drop contstraint "$1" RESTRICT;

> Does anybody could tell me how to drop a constraint on a column where no name was 
>provided to
> the constraint? How does Pg name constraints?
>
> Thanks
> --
> Renê Salomão
> Ibiz Tecnologia -- www.ibiz.com.br
>
>
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