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Update 03-opentsdb-telnet.mdx

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WANG MINGMING 2022-07-29 16:26:45 +08:00 committed by GitHub
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@ -23,7 +23,7 @@ OpenTSDB 行协议同样采用一行字符串来表示一行数据。OpenTSDB
- metric 将作为超级表名。 - metric 将作为超级表名。
- timestamp 本行数据对应的时间戳。根据时间戳的长度自动识别时间精度。支持秒和毫秒两种时间精度 - timestamp 本行数据对应的时间戳。根据时间戳的长度自动识别时间精度。支持秒和毫秒两种时间精度
- value 度量值，必须为一个数值。对应的列名也是 “value”。 - value 度量值，必须为一个数值。对应的列名是 “_value”。
- 最后一部分是标签集， 用空格分隔不同标签， 所有标签自动转化为 nchar 数据类型; - 最后一部分是标签集， 用空格分隔不同标签， 所有标签自动转化为 nchar 数据类型;
例如： 例如：
@ -74,7 +74,7 @@ taos> show stables;
Query OK, 2 row(s) in set (0.002544s) Query OK, 2 row(s) in set (0.002544s)
taos> select tbname, * from `meters.current`; taos> select tbname, * from `meters.current`;
tbname | ts | value | groupid | location | tbname | _ts | _value | groupid | location |
================================================================================================================================== ==================================================================================================================================
t_0e7bcfa21a02331c06764f275... | 2022-03-28 09:56:51.249 | 10.800000000 | 3 | California.LosAngeles | t_0e7bcfa21a02331c06764f275... | 2022-03-28 09:56:51.249 | 10.800000000 | 3 | California.LosAngeles |
t_0e7bcfa21a02331c06764f275... | 2022-03-28 09:56:51.250 | 11.300000000 | 3 | California.LosAngeles | t_0e7bcfa21a02331c06764f275... | 2022-03-28 09:56:51.250 | 11.300000000 | 3 | California.LosAngeles |