发布于 2016-09-22 23:53:47 | 138 次阅读 | 评论: 0 | 来源: 网友投递
Apache Calcite 动态数据管理框架
Apache Calcite 是一个动态数据管理框架,用于 Hadoop 平台。
Apache Calcite 1.9.0 发布了,
改进记录如下:
新特性:
the capability to recognize and translate Timeseries and TopN Druid queries
added new SQL features too, e.g., support for LATERAL TABLE
avoiding doing the same join twice in the presence of COUNT DISTINCT
being able to simplify the expressions in the plan further.
下载地址: