昨天,mysql 5.0.1 alpha 发布,包含很多新特性,详情请看 changelog 。
news from the changelog: 【相关文章:组件制作之一(概念)】
下载:http://dev.mysql.com/downloads/mysql/5.0.1-snapshot.html 【扩展阅读:default.aspx】
【扩展信息:B/S系统中刷屏后定位到对象】 functionality added or changed: * added support of read only and updateable views based on single table or other updateable views. * implemented a new ``greedy search´´ optimizer that can significantly reduce the time spent on optimizing the query in some many-table joins. (you are affected if not only some particular select is slow, but even using explain for it takes a noticeable amount of time.) two new system variables, optimizer_search_depth and optimizer_prune_level, can be used to fine-tune optimizer behavior. * warning: incompatible change! c api change: mysql_shutdown() now requires a second argument. this is a source-level incompatibility that affects how you compile client programs; it does not affect the ability of compiled clients to communicate with older servers. ... 下一页