optimize(cli): optimize the execution time format and omit to print time on empty query

[arkbriar]

Signed-off-by: arkbriar arkbriar@gmail.com

close #510

Optimize the time format to be similar to pgcli, which prints the execution time in seconds with three precision numbers and also a human-readable duration in seconds when the duration is longer than 1 second.

Examples:

1. Empty lines (no output)

> 
> 
> 

2. In 1s (only duration in seconds)

select count(*) from lineitem;
+---------+
| count   |
+---------+
| 6001215 |
+---------+
in 0.186s

3. Longer than 1s (with human-readable duration)

select
    l_returnflag,
    l_linestatus,
    sum(l_quantity) as sum_qty,
    sum(l_extendedprice) as sum_base_price,
    sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
    sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
    avg(l_quantity) as avg_qty,
    avg(l_extendedprice) as avg_price,
    avg(l_discount) as avg_disc,
    count(*) as count_order
from
    lineitem
where
    l_shipdate <= date '1998-12-01' - interval '71' day
group by
    l_returnflag,
    l_linestatus
order by
    l_returnflag,
    l_linestatus;
+--------------+--------------+----------+-----------------+-------------------+---------------------+--------------------------------+--------------------------------+--------------------------------+-------------+
| l_returnflag | l_linestatus | sum_qty  | sum_base_price  | sum_disc_price    | sum_charge          | avg_qty                        | avg_price                      | avg_disc                       | count_order |
+--------------+--------------+----------+-----------------+-------------------+---------------------+--------------------------------+--------------------------------+--------------------------------+-------------+
| A            | F            | 37734107 | 56586554400.73  | 53758257134.8700  | 55909065222.827692  | 25.522005853257337031693758442 | 38273.129734621672202709109884 | 0.0499852958383976116221043995 | 1478493     |
| N            | F            | 991417   | 1487504710.38   | 1413082168.0541   | 1469649223.194375   | 25.516471920522983476604725382 | 38284.467760848303906933649045 | 0.0500934266742162969063674268 | 38854       |
| N            | O            | 75283683 | 112909876769.66 | 107265890064.7416 | 111560462484.162066 | 25.500840389078803497319290943 | 38245.960228243034695434326354 | 0.0499965957637073860749460403 | 2952204     |
| R            | F            | 37719753 | 56568041380.90  | 53741292684.6040  | 55889619119.831932  | 25.505793612690770655973817847 | 38250.85462609965717067761196  | 0.0500094058301270564687903602 | 1478870     |
+--------------+--------------+----------+-----------------+-------------------+---------------------+--------------------------------+--------------------------------+--------------------------------+-------------+
in 5.888s (6s)

4. Interrupted (no output)

> select
    l_returnflag,
    l_linestatus,
    sum(l_quantity) as sum_qty,
    sum(l_extendedprice) as sum_base_price,
    sum(l_extendedprice * (1 - l_discount)) as sum_disc_price,
    sum(l_extendedprice * (1 - l_discount) * (1 + l_tax)) as sum_charge,
    avg(l_quantity) as avg_qty,
    avg(l_extendedprice) as avg_price,
    avg(l_discount) as avg_disc,
    count(*) as count_order
from
    lineitem
where
    l_shipdate <= date '1998-12-01' - interval '71' day
group by
    l_returnflag,
    l_linestatus
order by
    l_returnflag,
    l_linestatus;
^CInterrupted
2022-02-21T11:57:20.018646Z  WARN risinglight::executor::table_scan: Abort!

[TennyZhuang]

LGTM