postgre "unrecognized configuration parameter 'sql_mode'" FIX

Severity: Warning  --> pg_query() [<a href='function.pg-query'>function.pg-query</a>]: Query failed: ERROR:  unrecognized configuration parameter &quot;sql_mode&quot; 
system/codeigniter/database/drivers/postgre/postgre_driver.php 

Postgres does not have a sql_mode parameter... throws error when set.