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From mohan@physics.gmu.edu
Subject Unique Constraint with foreign Key
Date
Msg-id 64366.138.88.163.115.1076432616.squirrel@physics.gmu.edu
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Responses Re: Unique Constraint with foreign Key  (Bruno Wolff III <bruno@wolff.to>)
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Hi all i am using postgres and torque
I have a column x in Table A of type varchar and NOT NULL. I want to
impose a unique key constraint on that table and column y is the primary
key.
I have another Table B with column x. can i make this column x as a
foreign key on column x in table A.
or Can i have varchar types  of size 50 as primary keys in Postgres.

please let me know

--Mohan

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