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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2021/09/28 00:21:01 UTC

[GitHub] [iotdb] herowzz edited a comment on issue #3903: 希望能够支持反引号模式，从而能够让SQL支持保留关键字

herowzz edited a comment on issue #3903:
URL: https://github.com/apache/iotdb/issues/3903#issuecomment-928496530


   @jixuan1989 
   单引号，双引号识别的是字符串，反引号识别的是转义字符，个人建议不要同义
   比如上图中的`select id from xxx` 这里的id没有引号标识，则查询的是表中的字段
   但是 `select ‘id’ from xxx` 这个id有单引号标识，识别的是字符串 ，查询结果则直接是字符串 id
   反引号同样  select \`id` from xxx  这个id是转义的id，查询的还是字段 id


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