1.99.1. RHBA-2011:0494: mysql bug fix update
Updated mysql packages that fix several bugs are now available for Red Hat Enterprise Linux 5.
* Resolving queries containing a subquery with the DISTINCT and ORDER BY subclauses could have triggered a memory leak causing the query resolution to fail or the server to terminate unexpectedly if it had to process an extensive number of rows. With this update, the respective upstream patch has been applied and the queries are resolved correctly. (BZ#692953
All users of mysql are advised to upgrade to these updated packages, which fix these bugs.