LP:583314 - user_statistics - INT overflow

I am using MariaDB-server-5.2.0-77.el5.x86_64.rpm

Memory table information_schema.user_statistics contains:

`BYTES_RECEIVED` int(21) NOT NULL DEFAULT '0',
`BYTES_SENT` int(21) NOT NULL DEFAULT '0',

But these columns get quickly filled up to the maximum value of INT. Here is an example:

select bytes_sent, bytes_received from information_schema.user_statistics order by bytes_sent desc limit 5

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Is it possible to use BIGINT UNSIGNED instead?