defaultTo() doesn't JSON.stringify json columns

I’m on PostgreSQL 9.3.4 and ran

knex.schema.table('user', function(t) {
  t.json('preferences').defaultTo({}).notNullable();
}).then(function () {
  console.log('modified columns');
});

and got the result

             Column             |         Type          |                Modifiers
--------------------------------+-----------------------+------------------------------------------
 preferences                    | text                  | not null default '[object Object]'::text

It seems that defaultTo() should call JSON.stringify().

P.S. I would think that table column type would be json, but I didn’t set up this server, so it’s possible that the json extensions are not enabled.

[JetFault]

Doing t.json('data').defaultTo('{}'); works and checking PG returns as a default of '{}'::json so all good.

[tgriesser]

Could you just do .defaultTo('{}')?