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Merge pull request #17174 from taosdata/wangmm0220-patch-8 

Update 02-influxdb-line.mdx
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@ -70,6 +70,7 @@ meters,location=California.LosAngeles,groupid=2 current=13.4,voltage=223,phase=0
## SQL查询示例 ## SQL查询示例
- meters 是插入数据的超级表名 - meters 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=2` 可以通过如下sql： - 可以通过超级表的tag来过滤数据，比如查询 `location=California.LosAngeles,groupid=2` 可以通过如下sql：
``` cmd ``` cmd
select * from meters where location="California.LosAngeles" and groupid=2 select * from meters where location="California.LosAngeles" and groupid=2
``` ```