Return the load data that marks a specified jid

def get_load(jid):
    '''
    Return the load data that marks a specified jid
    '''
    jid = _escape_jid(jid)
    conn = _get_conn()
    if conn is None:
        return None
    cur = conn.cursor()
    sql = '''SELECT jid, tgt_type, cmd, tgt, kwargs, ret, username, arg,''' \
          ''' fun FROM jids WHERE jid = %s'''
    cur.execute(sql, (jid,))
    data = cur.fetchone()
    if data:
        return _build_dict(data)
    _close_conn(conn)
    return {}