Postgresql Beta 9.2 发布测试

概述9.2beta版本今儿发布测试，新增功能如下： Major performance and scalability advances in this version include:Index-only scans, allowing users to avoid inefficient scans of base tablesEnhanced read-only workload scal 9.2beta版本今儿发布测试，新增功能如下：

Major performance and scalability advances in this version include:Index-only scans,allowing users to avoID inefficIEnt scans of base tablesEnhanced read-only workload scaling to 64 cores and over 300,000 querIEs per secondImprovements to data write speeds,including group commitReductions in cpu power consumptionCascading replication,supporting geographically distributed standby databasesPostgresql 9.2 will also offer many new features for application developers,including:JsON data support,enabling hybrID document-relational databasesRange types,supporting new tyJavaScript:save_to_blog()pes of calendar,time-serIEs and analytic applicationsMultiple improvements to ALTER and other statements,easing runtime database updates

参考：http://www.postgresql.org/about/news/1395/ 总结

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