Update 04-opentsdb-json.mdx

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WANG MINGMING 2022-09-30 14:26:59 +08:00 committed by GitHub
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@ -96,6 +96,9 @@ taos> select * from `meters.current`;
Query OK, 2 row(s) in set (0.004076s)
```
## 查询示例
想要查询"tags": {"location": "California.LosAngeles", "groupid": 1} 的数据可以通过如下sql
## SQL查询示例
- `meters.voltage` 是插入数据的超级表名
- 可以通过超级表的tag来过滤数据比如查询 `location=California.LosAngeles groupid=1` 可以通过如下sql
``` cmd
select * from `meters.voltage` where location="California.LosAngeles" and groupid=1
```