Apache Drill 1.9.0 发布了。主要更新如下： 新特性： Asynchronous Parquet reader Parquet filter pushdown Dynamic UDF support HTTPD format plugin 改进： [DRILL-1950] - Implement filter pushdown for Parquet [DRILL-3178] - csv reader should allow newlines inside quotes [DRILL-4309] - Make this option store.hive.optimize_scan_with_native_readers=true default [DRILL-4653] - Malformed JSON should not stop the entire query from progressing [DRILL-4674] - Allow casting to boolean the same literals as in Postgre [DRILL-4752] - Remove submit_plan script from Drill distribution [DRILL-4771] - Drill should avoid doing the same join twice if count(distinct) exists [DRILL-4792] - Include session options used for a query as part of the profile [DRILL-4800] - Improve parquet reader performance [DRILL-4864] - Add ANSI format for date/time functions [DRILL-4865] - Add ANSI format for date/time functions [DRILL-4927] - Add support for Null Equality Joins [DRILL-4967] - Adding template_name to source code generated using freemarker template [DRILL-4986] - Allow users to customize the Drill log file name [DRILL-4987] - Use ImpersonationUtil in RemoteFunctionRegistry 下载地址： Blog post Release notes (JIRA) Source code 为了帮助企业用户寻找更为有效、加快Hadoop数据查询的方法，Apache 软件基金会发起了一项名为“Drill”的开源项目。Apache Drill 实现了 Google's Dremel. 该项目将会创建出开源版本的谷歌Dremel Hadoop工具（谷歌使用该工具来为Hadoop数据分析工具的互联网应用提速）。而“Drill”将有助于Hadoop用户实现更快查询海量数据集的目的。 数据结构： 兼容已有的 SQL 环境和 Apache Hive： Apache Drill 1.9.0 发布，大型数据集分析系统下载地址
