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From: PFC <[email protected]>
To: Mike Rylander <[email protected]>
To: [email protected]
Subject: Re: ENUM like data type
Date: Tue, 28 Jun 2005 18:58:32 +0200
Message-ID: <op.ss3aruu5th1vuj@localhost> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>


>> 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.

	Personnally I use one table which has columns (domain, name) and which  
stores all enum values for all different enums.
	I have then CHECK( is_in_domain( column, 'domain_name' )) which is a  
simple function which checks existence of the value in this domain (SELECT  
1 FROM domains WHERE domain=$2 AND name=$1 LIMIT 1) for instance.
	You can also use integers.

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