LOAD INDEX INTO CACHE replacement for InnoDB? MySQL

StackOverflow https://stackoverflow.com/questions/23070914

  •  03-07-2023
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Question

Is there a way to force index into cache for InnoDB tables?

The problem is I don't have enough memory to load all indexes into memory, so I want to cache particular ones.

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Solution

Loading the primary key (clustered) index:

SELECT COUNT(*) FROM tbl_name

Loading secondary index:

SELECT COUNT(*) FROM tbl_name FORCE INDEX(key_name)
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