old_contents: /**
   * DDL Queries
   */
  
  module.exports = {
  
    describe: function(cb) {
      console.log('TO-DO: Describe Query');
      cb(); // no-op for now
    },
  
    alter: function(cb) {
      console.log('TO-DO: Alter Query');
      cb(); // no-op for now
    },
  
    drop: function(cb) {
      console.log('TO-DO: Drop Query');
      cb(); // no-op for now
    }
  
  };
  
new_contents: /**
   * DDL Queries
   */
  
  module.exports = {
  
    /**
     * Describe a collection
     */
  
    describe: function(cb) {
      this._adapter.adapter.describe(this.identity, cb);
    },
  
    /**
     * Alter a table/set/etc
     */
  
    alter: function(attributes, cb) {
      this._adapter.adapter.alter(this.identity, attributes, cb);
    },
  
    /**
     * Drop a table/set/etc
     */
  
    drop: function(cb) {
      this._adapter.adapter.drop(this.identity, cb);
    }
  
  };
  
subject: add DDL query methods