MySQL 5.4预览版发布 性能提高90%
【51CTO编译】自4月20日甲骨文将收购Sun的消息传出之后,很多开发者和业内人士都对Java,开源以及MySQL的前景议论纷纷。MySQL一年前被Sun收购,做为甲骨文招牌数据库产品的主要竞争对手之一,很多人担心MySQL将会遭到排挤并消失(欲了解更多详情,请光顾专题
【51CTO编译】自4月20日甲骨文将收购Sun的消息传出之后,很多开发者和业内人士都对Java,开源以及MySQL的前景议论纷纷。MySQL一年前被Sun收购,做为甲骨文招牌数据库产品的主要竞争对手之一,很多人担心MySQL将会遭到排挤并消失(欲了解更多详情,请光顾专题:Oracle收购Sun)。不过这些并不影响最近的MySQL Conference & Expo上MySQL发布的MySQL更新。
周二,Sun的开源数据库部门发布了更加快速的更新MySQL的计划。
首先是MySQL 5.4的发布(官方下载地址)。根据声明,这个版本在某些指令运行上比MySQL 5.1提高了高达90%的效率。
这个更加快速的MySQL数据库来自收购MySQL一年多,又随即将被甲骨文收购的Sun。
MySQL的首席执行官对于甲骨文对待MySQL的态度充满乐观。他认为甲骨文会认识到MySQL的价值,并支持其加速更新发布的计划。
MySQL和软件基础设施部门的副总裁Karen Tegan Padir这样说到:“MySQL无处不在,所以它自身的影响力不会被谁收购它所影响。我们看待甲骨文收购Sun和看待Sun收购MySQL并无不同。甲骨文将会是一个好的接管人,因为他们必须这样做。只要他们不打算把MySQL排挤扼杀掉,MySQL将会持续加速发展。”
MySQL 5.4
MySQL部门产品经理Robin Schumacher解释说,MySQL的目标在于每三个月到半年就有一个新的里程碑。第一个就是MySQL 5.4。这次的发布算是一个预览版,今年晚些时候会发布完整版本。
MySQL 5.4的主要提升在于其性能。数据库中增添了不少创意的更新,其中最值得关注的就是MySQL优化器的改进。这个优化器是个规定数据库实现查询期间路径的工具。Schumacher表示MySQL优化器在subquery优化方面,如嵌套查询等查询上的效率提升了90%。
MySQL 6及之后
MySQL在过去几年间一直在谈论关于MySQL的开发。Shumacher表示,按照现在的计划,6.0版将在2010年推出。6.0版的重要功能之一将是Falcon引擎。这是MySQL在2006年公布的引擎,是InnoDB引擎的一个替代选项。
另外,Drizzle项目也是MySQL发展中十分重要的一部分。Padir对这个项目有着很高的评价。

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