knex: .returning('foo') returns primary key instead of 'foo' column in sqlite3

I have a node app that I switch back and forth between sqlite3 and postgres.

When I my npm script for using sqlite3 I get back a primary key rather than the column I specified. Postgres is returning the correct column.

No matter what I put in for .returning('*'/['uuid']/'name' .....) I seem to be getting the primary key in sqlite3.

This is how the docs describe the intended behavior.

// Returns [ { id: 1, title: 'Slaughterhouse Five' } ]
knex('books')
  .returning(['id','title'])
  .insert({title: 'Slaughterhouse Five'})

// Returns [ { id: 1, title: 'Slaughterhouse Five' } ]
knex('books')
  .returning(['id','title'])
  .insert({title: 'Slaughterhouse Five'})

The Query in Question

add: function (d, results) {
    return db('output')
      .returning('uuid')
      .insert({
        classifiers: JSON.stringify(d.classifiers),
        created: now(),
        datasource: d.datasource,
        files: JSON.stringify(d.files),
        name: d.name,
        results: results,
        uuid: uuid.v4()
      })
      .then((ret) => ret[0])
  },

Screenshot of data

Config File

var prod = process.env.PROD_CONN_STRING,
  dev = process.env.DEV_CONN_STRING,
  test = process.env.TEST_CONN_STRING;

module.exports = {

  test: {
    client: 'pg',
    connection: test,
    migrations: {
      tableName: 'knex_migrations'
    }
  },

  demo: {
    client: 'sqlite3',
    connection: {
      filename: './tcu.sqlite'
    }
  },

  dev: {
    client: 'pg',
    connection: dev,
    migrations: {
      tableName: 'knex_migrations'
    }
  },


  prod: {
    client: 'pg',
    connection: prod,
    pool: {
      min: 2,
      max: 10
    },
    migrations: {
      tableName: 'knex_migrations'
    }
  }
};

This might be a bug or perhaps the docs are lacking. Either way I can try to take a look at it if a collaborator can point me in the right direction.