Merge pull request #17175 from taosdata/wangmm0220-patch-9-1
Update 03-opentsdb-telnet.mdx
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@ -81,6 +81,10 @@ taos> select tbname, * from `meters.current`;
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t_7e7b26dd860280242c6492a16... | 2022-03-28 09:56:51.250 | 12.600000000 | 2 | California.SanFrancisco |
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Query OK, 4 row(s) in set (0.005399s)
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```
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## 查询示例:
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想要查询 location=California.LosAngeles groupid=3 的数据,可以通过如下sql:
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select * from `meters.voltage` where location="California.LosAngeles" and groupid=3
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## SQL查询示例
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- `meters.current` 是插入数据的超级表名
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- 可以通过超级表的tag来过滤数据,比如查询 `location=California.LosAngeles groupid=3` 可以通过如下sql:
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``` cmd
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select * from `meters.current` where location="California.LosAngeles" and groupid=3
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```
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