A Sun Microsystems anunciou o lançamento do MySQL 5.4 em abril desse ano e a nova versão já está na “boca do povo”. A SM informou (em nota oficial) que o novo BD, possui melhorias significativas no desempenho e escalabilidade, assim como uma série de outras caracteristicas e benefícios. O novo MySQl está disponível para uma grande variedade de plataformas, tais como: Red Hat Enterprise Linux, SuSE Enterprise Linux, Microsoft Windows, Sun Solaris 10 Operating System, OpenSolaris, Mac OS X, Free BSD, HP-UX, IBM AIX , IBM i5/OS e outros populares distribuições Linux.

MySQL 5.4 Features & Benefits

A number of new enterprise features and compelling fixes are planned for MySQL 5.4, including:

• Scalability improvements — these fixes allow the InnoDB storage engine to scale up to 16-way x86 servers and 64-way CMT servers, more than doubling its previous capability;
• Subquery optimizations — improves the performance of analytic query operations, with some subqueries now executing in a fraction of the time compared to previous MySQL versions;
• New query algorithms — utilizes main memory to speed up the execution time of multi-way joins, especially for MySQL Cluster because the number of round-trips between the server and cluster nodes is minimized;
• Improved stored procedures — enables more robust error management through the implementation of the SIGNAL/RESIGNAL functions, so applications can more easily rely on stored procedures for business logic;
• Improved prepared statements — Output parameters will now be supported in prepared statements, which increases their functionality;
• Improved Information Schema — provides more metadata access to parameters and data return types that stored procedures use, which allows much more information to be made available for developers using connectors such as ODBC and JDBC;
• Improved DTrace support — improves diagnostics and troubleshooting capabilities for MySQL on the Solaris(TM) Operating System.

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