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MySQL 在建立索引后能否 drop column 但是保留索引?
a2z
·
Nov 26, 2014
· 2101 views
This topic created in 4198 days ago, the information mentioned may be changed or developed.
比如
id,username
id是主键
给username加索引后能否drop username,但是保留username上的索引,query的时候返回id?
索引
username
drop
1 replies
•
2014-11-26 12:07:34 +08:00
1
rqrq
Nov 26, 2014
你需要的是类似Lucene这样的全文搜索引擎。
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