Cassandra数据存储大小写问题

深藏阁楼爱情的钟 2022-06-14 23:56 234阅读 0赞

cassandra是大小写不敏感（存储或显示），默认是把数据按小写存储或显示（包括keyspace name, table name, 字段名）

![20170518110315782][]

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官方说如果想用大写，加双引号转义，试了一把：

![20170518110924745][]

感觉其实就是把双引号一块存储了（不知道我有没有理解错）

另：

CQL的关键词是不区分大小写。

更详细请见：http://docs.datastax.com/en/cql/3.3/cql/cql\_reference/ucase-lcase\_r.html

[20170518110315782]: /images/20220615/d0ab7342622d42fb85c12e91b738fa4a.png
[20170518110924745]: /images/20220615/146daef16ddb4d10a2d344678c06ac8c.png