public function sub()
    {
        $this->oosql_sub = true;
        $this->exe();
        $this->sql('(' . $this->getSql() . ')', true);

        return $this;
    }
public function sub()
    {
        $this->oosql_sub = true;
        $this->exe();
        $this->sql('(' . $this->getSql() . ')', true);

        return $this;
    }
public function sub ( ) { $ this -> oosql_sub = true ; $ this -> exe ( ) ; $ this -> sql ( '(' . $ this -> getSql ( ) . ')' , true ) ; return $ this ; }
Declares current query as a sub-query
@return \Phiber\oosql\oosql
Declares current query as a sub - query