PostgreSQL 9.5 Alpha 1 发布，该版本值得关注的新特性包括：
Block-Range Indexes (BRIN) which enable compact indexing of very large tables
Large speed improvements in in-memory sorting and hashing
Automated management of transaction log size
INSERT ON CONFLICT UPDATE, otherwise known as "UPSERT"
Grouping Sets, CUBE and ROLLUP analytic operations
Row-Level Security (RLS) support
More JSONB data manipulation functions and operators
Added the pg_rewind tool and other high availability improvements to replication
Multiple enhancements to Foreign Data Wrappers, including IMPORT FOREIGN SCHEMA
Large increases in multi-core and large memory scalability
软件详情：http://www.postgresql.org/about/news/1595/
下载地址：http://www.postgresql.org/download/
来自:开源中国社区
