sql='''select stddev(q_int) from table_0 group by q_int;'''
tdSql.query(sql)
tdSql.checkRows(self.num)
sql='''select stddev(q_int),stddev(q_bigint),stddev(q_smallint),stddev(q_tinyint),stddev(q_float),stddev(q_double) from stable_1 group by q_int;'''
tdSql.query(sql)
sql='''select stddev(q_int),stddev(q_bigint),stddev(q_smallint),stddev(q_tinyint),stddev(q_float),stddev(q_double) from table_1 group by q_bigint;'''
tdSql.query(sql)
tdSql.checkRows(self.num)
sql='''select stddev(q_int),stddev(q_bigint),stddev(q_smallint),stddev(q_tinyint),stddev(q_float),stddev(q_double) from regular_table_1 group by q_smallint;'''