From: MRB <nomail@example.com>
To: pgsql-sql@postgresql.org
Subject: ENUM like data type
Date: Tue, 21 Jun 2005 17:20:19 +0200
Message-ID: <11bgc1oblfasq3d@corp.supernews.com> (raw)
Hi All,
I have something in mind I'm not certain is do-able.
I'm working with a lot of data from MySQL where the MySQL ENUM type is used.
This is not a big problem per se but creating the proper lookup tables
is becoming a bit tedious so I was hoping to make something better of it.
Here is where I get uncertain as to if this is possible. My idea is to
create a pseudo type that triggers the creation of it's lookup tables
the same way the SERIAL type triggers creation of a sequence and returns
an int with the right default value.
Here is what would want to happen:
CREATE TABLE test(
testfield ENUM('Bits', 'of', 'data')
);
-- This would trigger the following events:
CREATE TABLE test_testfield_enum(
id VARCHAR(4) NOT NULL PRIMARY KEY;
);
INSERT INTO test_testfield_enum VALUES('Bits');
INSERT INTO test_testfield_enum VALUES('Of');
INSERT INTO test_testfield_enum VALUES('data');
CREATE TABLE test(
testfield VARCHAR(4) REFERENCES test_testfield_enum(id)
);
Hope that is clear enough. As said I am not quite sure this is possible,
my guess would be no. But any input is appreciated.
Cheers,
Martin
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Subject: Re: ENUM like data type
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