docs: function (db, opts) {
              this._super(arguments);
              this.db = db;
              this.__opts = {};
              this.__rowCb = null;
              if (db) {
                  this.__quoteIdentifiers = db.quoteIdentifiers;
                  this.__identifierInputMethod = db.identifierInputMethod;
                  this.__identifierOutputMethod = db.identifierOutputMethod;
              }
          }