Re: DEFAULT Constraint based on table type?
От | Rod Taylor |
---|---|
Тема | Re: DEFAULT Constraint based on table type? |
Дата | |
Msg-id | 1133215075.69767.30.camel@home обсуждение исходный текст |
Ответ на | DEFAULT Constraint based on table type? ("Announce" <truthhurts@insightbb.com>) |
Список | pgsql-sql |
On Mon, 2005-11-28 at 14:22 -0600, Announce wrote: > Lets say I have the following tables. > > CREATE TABLE animals(id primary key, name varchar, type varchar); > CREATE TABLE dogs (breed varchar) INHERITS (animals); > CREATE TABLE birds (bool hasFeathers) INHERITS (animals); r=# alter table birds alter type set default 'Bird'; ALTER TABLE r=# \d birds Table "public.birds" Column | Type | Modifiers -------------+-------------------+-----------------------------------id | integer | not nullname | character varying |type | character varying | default 'Bird'::character varyinghasfeathers | boolean | Inherits: animals r=# \d animals Table "public.animals"Column | Type | Modifiers --------+-------------------+-----------id | integer | not nullname | character varying |type | charactervarying | Indexes: "animals_pkey" PRIMARY KEY, btree (id) --
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