Teiid 7.5 Beta2,数据虚拟化系统

红薯
 红薯
发布于 2011年08月01日
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Teiid 7.5 Beta2 发布了,该版本包含一些新特性和很多的bug修复,值得关注的有:

  • Window function support - Teiid and pushdown support was added for SQL 2003 OLAP window functions. The analytical ranking functions RANK, DENSE_RANK, and ROW_NUMBER were also added. See the reference for more.
  • ODBC Cursors - added the capability to use "UseDeclareFetch" with ODBC. This enables users to read results in batches, which is especially useful when dealing with large row counts.
  • Internal Materialized Views
    • Distributed Refresh - When a internal materialized view is refreshed at one node, an event is issued to all other nodes in the cluster to asynchronously fetch the new contents.
    • Sync at Start - When a node is restarted in a cluster, at end of start cycle Teiid will asynchronously fetch the cached internal materialized view contents from other nodes.

Teiid是一个数据虚拟化系统,让应用程序使用来自多个异构数据存储的数据。

Teiid由一堆工具,组件和创建和执行双向数据的服务所组成。通过抽象和联合、数据存取和集成的实时分布式数据源,无需进行复制或以其他方式移动数据系统的纪录。

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本文标题:Teiid 7.5 Beta2,数据虚拟化系统
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最新评论(1

MUTEX
MUTEX
这东西效率怎样?有人用过吗。
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