Db error

[eluser]shahnawazahmed[/eluser]
Hello everyone ,
i have developed paginators in the site using pagination library , i modified the sql query by adding $this->db->select , because i wanted to select specific fields from the table

it showing an error

A PHP Error was encountered

Severity: Notice

Message: Object of class CI_DB_mysql_driver could not be converted to int

Filename: database/DB_active_rec.php

Line Number: 877

... Help please ??