Adds an index to a specified table.

$table string Required

Database table name.

$index string Required

Database table index column.

true True, when done with execution.

File: wp-admin/includes/upgrade.php. View all references

function add_clean_index( $table, $index ) {
	global $wpdb;

	drop_index( $table, $index );
	$wpdb->query( "ALTER TABLE `$table` ADD INDEX ( `$index` )" );

	return true;
}