Crate Data 0.47.6 发布，大规模数据存储系统

Crate Data 0.47.6 发布，此版本现已提供下载：https://github.com/crate/crate/archive/0.47.6.zip。

更新内容如下：

• Fixed an issue with custom schemas that could cause select statements on the
  information_schema.tables table to result in a NPE.
• Fixed an issue that could cause the response to contain the wrong types
  (e.g. integer instead of long)
• Fix: Sorting on a scalar with a column containing NULL values as

1. no longer throws an NPE

• Fix: group by on clustered by column on a partitioned table now produces

1. results for groups spanning different partitions

• Fixed an issue that caused errors to be swallowed and caused queries to not

1. correctly.

• Fix: COPY FROM and INSERT from subquery into a partitioned table created

1. tables with a wrong name instead of correct partitions

Crate Data 是一个开源的大规模的可伸缩的数据存储系统，无需任何系统管理需求。提供强大的搜索功能。用于存储各种表格数据、非结构化数据和二进制对象。并可通过 SQL 进行检索。易于安装和使用，支持高可用性和实时大规模并行访问和处理。

使用方法：

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