Question

My domain class looks like this:

package com.initech.tps

class Foo
{
    String stuff

    static mapping = {
        // mapping to a legacy table as opposed to letting Grails create it
        table name: 'FOO', schema: 'TPS'
        id generator: 'sequence', params: [sequence: 'MY_SEQ'], 
            column: 'FOO_ID', sqlType: 'integer' 
        foo column: 'STUFF'
    }

    static constraints = {
        stuff(nullable: true, maxSize: 40000)
    }
} 

I was under the impression Grails would figure out to use a CLOB instead of a VARCHAR based on my passing in a big enough value for the maxSize constraint, instead I get this error message in the console:

org.hibernate.HibernateException: Wrong column type in FOO for column STUFF. 
Found: clob, expected: varchar(40000)

Do I need an explicit sqlType on the mapping? I tried using different values of maxSize, and leaving it out altogether, with no difference. Also adding sqlType: clob or sqlType: text doesn’t work.

I’m on Grails 1.3.7, using IBM DB2-Express.

Answer 1

Found the answer. Nothing like reading the documentation to find something out.

The change that worked was changing the mapping for the clob column to

foo column: 'STUFF', type: "text"