fix: write failed when value is zero

[daviderli614]

What's changed and what's your intention?

When the id value is 0, the write result is as follows, the id column shows null, we should allow 0 value to be written.

mysql> select *from monitors_with_tag;
+------+-----------+--------+------+-------------+---------+----------------------------+
| id   | host      | memory | cpu  | temperature | running | ts                         |
+------+-----------+--------+------+-------------+---------+----------------------------+
| NULL | 127.0.0.1 |      1 |  1.1 |          -1 |       1 | 2024-08-14 09:09:29.520000 |
| NULL | 127.0.0.1 |      1 |  1.1 |          -1 |       1 | 2024-08-14 09:09:29.710000 |
| NULL | 127.0.0.2 |      2 |    2 |          -2 |       1 | 2024-08-14 09:09:29.520000 |
| NULL | 127.0.0.2 |      2 |    2 |          -2 |       1 | 2024-08-14 09:09:29.710000 |
+------+-----------+--------+------+-------------+---------+----------------------------+

Checklist

• I have added the necessary unit tests and integration tests.

Refer to a related PR or issue link (optional)

[daviderli614]

PTAL @yuanbohan @fengjiachun

[yuanbohan]

LGTM