Example of Load Index Into Cache Mysql Statement:
LOAD INDEX INTO CACHE t1, t2 IGNORE LEAVES;
LOAD INDEX INTO CACHE myTable (idx_1)
Example of Mysql Load Index Into Cache
LOAD INDEX INTO CACHE
tbl_index_list [, tbl_index_list] ...
tbl_index_list:
tbl_name
[[INDEX|KEY] (index_name[, index_name] ...)]
[IGNORE LEAVES]