'%1' 不是可强制使用全文搜索键的有效索引。全文搜索键必须是唯一的、不可为空的、单列的索引，并且该索引不是离线的，不是在不确定的或不精确的非持久化计算列上定义的，最大大小为 %2 个字节。请为全文键选择其他索引。

'%1' is not a valid index to enforce a full-text search key. A full-text search key must be a unique, non-nullable, single-column index which is not offline, is not defined on a non-deterministic or imprecise nonpersisted computed column, and has maximum size of %2 bytes. Choose another index for the full-text key.