PostgreSQL - 讨论区
标题：PostgreSQL 9.1 正式版发布
2011年09月13日 星期二 09:16
数据库PostgreSQL 9.1 正式版发布，PostgreSQL 9.1 主要亮点：
- 同步复制: 高性能的保持多服务器间数据一致性
- 按列的校对(Collations): support linguistically-correct sorting per database, table or column.
- 无日志表: 大大的提升了一些临时数据的处理性能
更多该版本的详细介绍请看官方发行说明：
http://www.postgresql.org/about/news.1349
下载地址：
开源中国社区 [http://www.oschina.net]
2011年09月14日 星期三 09:53
9.1正式版本真的发布了。
PostgreSQL9.1的新增的功能为：
1. Unlogged tables to better handle NoSQL workloads
2. Synchronous replication for greater reliability
3. SQL/MED (Management of External Data) (flat files, other databases)
4. Per-column collation support
5. Security Label, including SE-Linux integration
6. True serializable isolation with predicate locking (already had snapshot isolation)
7. Non-SELECT statement recursive queries
8. Nearest-Neighbor (order-by-operator) Indexes
9. Extensions (plugin) commands
10. PL/Python overhaul (PL/Perl was done in 9.0)
1. Unlogged tables to better handle NoSQL workloads
2. Synchronous replication for greater reliability
3. SQL/MED (Management of External Data) (flat files, other databases)
4. Per-column collation support
5. Security Label, including SE-Linux integration
6. True serializable isolation with predicate locking (already had snapshot isolation)
7. Non-SELECT statement recursive queries
8. Nearest-Neighbor (order-by-operator) Indexes
9. Extensions (plugin) commands
10. PL/Python overhaul (PL/Perl was done in 9.0)
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