Query failed: ERROR: OFFSET no debe ser negativo

[dave_river89]

Bueno esta es la linea donde veo OFFSET y no tiene valor negativo

$result = pg_query($this->conn, $sql2);
$row = pg_fetch_array( $result);
$num_rows_T = $row['count'];
// $num_rows_T = pg_num_rows( $result );


$sql .= ' limit '.$paso.' offset '.$inicio;

$result = pg_query($this->conn, $sql);
if ( is_null($result) ) throw new Exception($sql."<br>",1204);
$num_campos = pg_num_fields( $result );
/* comienza en 0 */
for($i = 0 ; $i < $num_campos ; $i++)
$this->dataset->append(pg_field_name($result,$i),pg_field_type($r esult,$i));
//$r = 0;
$k = 0;