LOAD INDEX INTO CACHE

Use this MySQL statement to preload a table's index into a given key cache for a MyISAM table.

Syntax

Below is the syntax for this command. Text within square brackets (i.e, [ and ] ) are optional. Choices are separated by bars (i.e, | ). Ellipses preceded by a comma indicates a repeating pattern. Ellipses before or after syntax are used to highlight a relevant except from the larger syntax. Text displayed in italic letters represent text that should be replaced with the specific names related to the database (e.g., column with the name of the column).

LOAD INDEX INTO CACHE
  table [[INDEX|KEY] (index[,  . . . )] [IGNORE LEAVES]
  [,  . . . ]

Explanation

Use this MySQL statement to preload a MySQL table's index into a given key cache for a MyISAM table. The syntax allows one or more indexes to be specified in a comma-separated list in parentheses, in order to preload just the specified indexes, but presently MySQL simply loads all the indexes for the MySQL table into the cache. The keywords INDEX and KEY are interchangeable and optional; they do not affect the results. The IGNORE LEAVES clause instructs MySQL not to preload leaf nodes of the index.

Examples

Here is an example of how you can use this MySQL statement:

LOAD INDEX INTO CACHE workreq;

+----------------------+--------------+----------+----------+
| Table                | Op           | Msg_type | Msg_text |
+----------------------+--------------+----------+----------+
| workrequests.workreq | preload_keys | status   | OK       |
+----------------------+--------------+----------+----------+