数据虚拟化系统 Teiid 7.6 Alpha1 发布

     <p>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。</p>    <p>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。<br /> <span style="font-weight:bold;">项目地址</span>：<a href="/misc/goto?guid=4958183978056190836" target="_blank">http://www.jboss.org/teiid</a></p>    <p><img title="数据虚拟化系统 Teiid 7.6 Alpha1 发布" border="0" alt="数据虚拟化系统 Teiid 7.6 Alpha1 发布" src="https://simg.open-open.com/show/21407a9804b25026a15c41429e988050.jpg" width="414" height="308" /></p>    <p><a href="/misc/goto?guid=4958192528269954590">7.6 Alpha1</a> 发布了，与 7.5 比较，改进内容：</p>    <ul>     <li><strong>Procedure language features</strong> - Added support for compound/block statements, BEGIN [[NOT] ATOMIC], loop/block labels, and the leave statement. See the reference for more. </li>     <li><strong>File Enhancements</strong> - the file translator can now optionally (via the ExceptionIfFileNotFound property) throw an exception if the path refers to a file that doesn't exist. The file resource adapter can be configured to map file names and can prevent parent path .. references. See the Admin Guide or the file-ds.xml template for more. </li>     <li><strong>TEXTTABLE Enhancements</strong> - TEXTTABLE can now parse fixed width files that do not use a row delimiter and can optionally produce fixed values that haven't been trimmed. </li>     <li><strong>Temp table transactions</strong> - Internal materialized views and temp table usage from a session and within procedures can take advantage of greater transaction support. </li>     <li><strong>Buffering Improvements</strong> - Added the ability to inline memory based or small lobs and added tracking of the memory held by soft references. Also switched to a LFRU algorithm that significantly reduces writes and read misses with temporary tables. </li>     <li><strong>GSSAPI</strong> - both the Teiid JDBC client/server and the ODBC pg backend can now support GSSAPI for single sign-on. (this is in the documentation, but not yet in the release notes as it has yet to be tested).</li>    </ul>