Re: CONSTRAINT name With Domain As Check

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От
Tom Lane
Тема
Re: CONSTRAINT name With Domain As Check
Дата
Msg-id
18198.1177822317@sss.pgh.pa.us
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CONSTRAINT name With Domain As Check Rich Shepard <rshepard@appl-ecosys.com>
Re: CONSTRAINT name With Domain As Check Tom Lane <tgl@sss.pgh.pa.us>
Re: CONSTRAINT name With Domain As Check Rich Shepard <rshepard@appl-ecosys.com>
Rich Shepard  writes:
>    I define a table, Permits, that includes a column for type.
>    Permit_Type is a domain with permissible names:

> CREATE DOMAIN Permit_Type
>    as TEXT
>    CHECK (value in ('Environmental', 'Health', 'Safety', 'Occupancy'));

>    Can I name that domain check within the Permits table as follows?

> CREATE TABLE Permits (
>    ...
>    type Permit_Type
>      CONSTRAINT invalid_permit_type
>    ...
> );

Um, what are you trying to do that's different from declaring a column
of the table as being of type Permit_Type?

			regards, tom lane
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