From: | Thom Brown <thom(at)linux(dot)com> |
---|---|
To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: creating CHECK constraints as NOT VALID |
Date: | 2011-06-01 00:18:18 |
Message-ID: | BANLkTiktuHwN11qgyERfz29gF3aMUuAUCA@mail.gmail.com |
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Lists: | pgsql-hackers |
On 31 May 2011 18:43, Alvaro Herrera <alvherre(at)commandprompt(dot)com> wrote:
>
> Here it is -- as a context patch this time, as well.
>
> --
> Álvaro Herrera <alvherre(at)commandprompt(dot)com>
> The PostgreSQL Company - Command Prompt, Inc.
> PostgreSQL Replication, Consulting, Custom Development, 24x7 support
There is this scenario:
test=# CREATE DOMAIN things AS INT CHECK (VALUE > 5);
CREATE DOMAIN
test=# CREATE TABLE abc (id SERIAL, stuff things);
NOTICE: CREATE TABLE will create implicit sequence "abc_id_seq" for
serial column "abc.id"
CREATE TABLE
test=# INSERT INTO abc (stuff) VALUES (55);
INSERT 0 1
test=# ALTER DOMAIN things ADD CONSTRAINT meow CHECK (VALUE < 11) NOT VALID;
ERROR: column "stuff" of table "abc" contains values that violate the
new constraint
STATEMENT: ALTER DOMAIN things ADD CONSTRAINT meow CHECK (VALUE < 11)
NOT VALID;
--
Thom Brown
Twitter: @darkixion
IRC (freenode): dark_ixion
Registered Linux user: #516935
EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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