(1) "day (3)" => "day"
    (2) "limit -1" => "limit 1"
    (3) 去除"limit"前一行多余的分号(vim:%s/;\nlimit/^Mlimit)
        vim输入^M: Ctrl-v, Ctrl-m
    (4) query 13:
        "count(o_orderkey)"
            =>
        "count(o_orderkey) as c_count"

        ") as c_orders (c_custkey, c_count)"
            =>
        ") as c_orders"

    (5) query 15:
                s_suppkey;
        drop view revenue0
        limit 1;
            =>
                s_suppkey
        limit 1;
        drop view revenue0;

    (6) interval:
        interval 'i' day    => interval i day
        interval 'j' month  => interval j month
        interval 'k' year   => interval k year
    (7) 删除头部注释行，用例内部不留空行，用例之间以2空行分隔