PostgreSQL 9.5 Alpha 1 發布，排序性能提升

PostgreSQL是一個強大的關系型數據庫管理系統，它按照BSD許可^[1]發行。PostgreSQL包含很多高級的特性，擁有良好的性能和很好的適用性。

PostgreSQL綁定了很多種編程語言，例如 C, C++, Python, Java, PHP, Ruby等 ，它可以操作很多東西，從簡單的Web應用程序到擁有數百萬條記錄的龐大數據庫。

• 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

詳細介紹請看發行說明。

相關鏈接：

• Downloads Page

• Alpha Testing Information

• 9.5 Alpha Release Notes

• What's New in 9.5