lijie2049的博客

//创建数据库并导入数据1. create database{database_name};2.use{database_name};3. create table docs(line string);4. load data inpath '/training/{student_name}/inceptor_data/wordcount' into table docs;//创建结果表create table wc(word string, totalword int)...

考虑到生产环境可能无法联网所以直接采用RPM安装。下载RPM装包：http://www.postgresql.org/download/postgresql94 - PostgreSQL client programs and librariespostgresql94-contrib - Contributed source and binaries distribute...