LOAD INDEX

Syntax

LOAD INDEX INTO CACHE
  tbl_index_list [, tbl_index_list] ...

tbl_index_list:
  tbl_name
    [[INDEX|KEY] (index_name[, index_name] ...)]
    [IGNORE LEAVES]

Description

The LOAD INDEX INTO CACHE statement preloads a table index into the key cache to which it has been assigned by an explicit CACHE INDEX statement, or into the default key cache otherwise. LOAD INDEX INTO CACHE is used only for MyISAM or Aria tables. Until MariaDB 5.3, it was not supported for tables having user-defined partitioning, but this limitation was removed in MariaDB 5.5.

The IGNORE LEAVES modifier causes only blocks for the nonleaf nodes of the index to be preloaded.

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