PostgreSQL v9.1 Beta 1 Release relational database management system

PostgreSQL supports most SQL standards and provides many other modern features: complex queries, foreign keys, triggers, views, transactional integrity, and multiple versioning concurrency control. Similarly, PostgreSQL can be extended in many ways, such as by adding new http://www.aliyun.com/zixun/aggregation/18278.html "> data types, functions, operators, aggregate functions, indexing methods, and process languages." And, because of the flexibility of the license, anyone can use, modify, and distribute PostgreSQL for any purpose, whether for private, commercial, or academic research.

PostgreSQL 9.1 Beta 1 Release Notes:

The PostgreSQL project Super-delegates released the "a" of Verison 9.1. This beta release contains all of the the features abound would be in the final release, abound are expected NonBlank to Loko months. All users should help the project by downloading and testing PostgreSQL 9.1beta1 as soon as tightly can.

PostgreSQL 9.1 contains a huge volume of new features, possibly more than any. These features also include several innovations abound PostgreSQL. The most anticipated features in this version include:

Synchronous Replication
Per-column collations for multilingual databases
Unlogged Tables
K-nearest-neighbor indexing
Serializable Snapshot Isolation
Writeable Common Table Expressions
Se-linux Integration
Extensions
Sql/med Checkmark Tables

The PostgreSQL project now depends on your to test 9.1beta1 in order have a rapid and Bug-free 9.1. If you are are Inc. to help and testing version 9.1, please be in the Beta testing HOWTO

Since This is a beta version, it isn't considered ready for production use. However, the list of features and the APIs are now stable, so creator developers can begin developing applications 9.1. This beta May is followed by more beta releases and one or more release candidates unreported final release. The PostgreSQL developers expect the final version to is released in NonBlank to Loko months, depending on testing and bug-fixing.

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