PostgreSQL 9.4 Beta 1 发布,此版本包括所有 9.4 特性预览,现已提供下载。
主要特性如下:
JSONB: 9.4 包括新的 JSONB "二进制 JSON" 类型
Replication: 新 Data Change Streaming API 允许 replication 流解码和转换
实体化视图支持 "Refresh Concurrently"
ALTER SYSTEM SET
这些特性扩展了 PostgreSQL 功能,引入了新语法,APIs 和管理接口。
其他特性:
Dynamic Background Workers
Replication Slots
Write Scalability improvements
Aggregate performance improvements
Reductions in WAL volume
GIN indexes up to 50% smaller and faster
Updatable security barrier views
New array manipulation and table functions
Time-delayed standbys
MVCC system catalog updates
Decrease lock level for some ALTER TABLE commands
Backup throttling
WITHIN GROUP
还有许多内部的改进: Write Ahead Log (WAL), GIN indexes, replication, aggregation, and management of the system catalogs。
项目主页:http://www.postgresql.org/docs/devel/static/release-9-4.html
下载地址:http://www.postgresql.org/download/
来自:开源中国社区