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我不明白这个 CQL 有什么问题 - 它只是检查新用户的电子邮件或用户名是否会与已经存在的人发生冲突:
select email,username from person where email=? or username=?
我应该把它分成两个单独的查询吗?它说:
line 1:33 missing EOF at 'or')
您必须使用单独的查询和合并:CQL 中没有 OR(还)。