Teiid 8.12.1 发布，更新内容如下：
修复
[TEIID-3757] - OData V2: $top doesn't work with virtual procedures
[TEIID-3760] - endswith defined with wrong return type
[TEIID-3761] - OData V2: The property based response and Function based responses are incorrect per specification
[TEIID-3762] - OData V2: $value on property is not supported
[TEIID-3764] - HBase - Phoenix driver does not support UNION
[TEIID-3765] - HBase - Phoenix does not support scalar subquery
[TEIID-3767] - HBase - Phoenix does not support LIKE ESCAPE
[TEIID-3770] - HBase - table's alias (... AS ...) is not "visible" in SELECT caluse in IN predicate
[TEIID-3771] - Teiid throws an NPE while executing query with nested subquery IN predicate
[TEIID-3776] - Teiid throws NPE if query contains AVG function on varchar type
[TEIID-3777] - ORDER BY DESC is ignored in STRING_AGG function when DISTINCT is also specified
[TEIID-3783] - Error when limit/sort is pushed above a window function
[TEIID-3785] - PostgreSQL - Large Objects may not be used in auto-commit mode.
[TEIID-3759] - Missing Apache Olingo dependency in Teiid 8.12.0.Final
[TEIID-3780] - Hive: Convert "UseDatabaseMetaData: to be an translator import property
[TEIID-3781] - Queries are not killed even if the client sends a cancel request
提升：
[TEIID-3039] - OData V2: Add support for odata expand
[TEIID-3361] - Initial addition of source query details to the command log
[TEIID-3436] - OData V2: Add array type support to the odata translator
[TEIID-3778] - Mark hbase/phoenix as supporting limit
[TEIID-3791] - Upgrade groovy-all to be version 2.4.
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。
简而言之：Teiid 可以让你用 JDBC + SQL 来访问企业的任何数据，并可对这些不同源的数据进行联合查询。
软件详情：http://teiid.blogspot.com/2015/10/teiid-8121-released.html
下载地址：http://teiid.jboss.org/downloads/
来自:开源中国社区
