在阿里巴巴的数据体系中,我们建议将数据仓库分为三层,自下而上为:数据引入层(ODS,Operation Data Store)、数据公共层(CDM,Common Data Model)和数据应用层(ADS,Application Data Service)。数据仓库的分层和各层级用途如下图所示。数据引入层ODS(Operation Data …
《CPython Internals》学习第 4 天,p61-p75 总结,总计 15 页。
一、技术总结
1.编译器类型
(1)self-hosted compiler
Self-hosted compilers are compilers written in the language they compile, such as the Go compiler. This is done by a process known as bootstrap…