TimescaleDB 0.9.0 发布，基于 PgSQL 的时序数据库

TimescaleDB 0.9.0 已发布，TimescaleDB 是基于 PostgreSQL 数据库开发的一款时序数据库，以插件化的形式打包提供，随着 PostgreSQL 的版本升级而升级，不会因为另立分支带来麻烦。

TimescaleDB 架构

数据自动按时间和空间分片(chunk)

该版本值得关注的变更

• Streamlined update process for smaller binary/package sizes
• Significant refactoring to simplify and improve code , including improvements to error handling, security/permissions, and more
• Corrections to edge-case scenarios involving dropping schemas, hypertables, dimensions, and more
• Correctness improvements through propagating reloptions from main table to chunk tables and blocking ONLY commands that try to alter hypertables (i.e., changes should be applied to chunks as well)
• Addition of a migrate_data option to create_hypertable to allow non-empty tables to be turned into hypertables without separate creation & insertion steps. Note, this option may take a while if the original table has lots of data
• Support for ALTER TABLE RENAME CONSTRAINT
• Support for adjusting the number of partitions for a space dimension
• Improvements to tablespace handling

下载地址：https://github.com/timescale/timescaledb/releases/tag/0.9.0