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[程序员] 求推荐高压缩比的时序数据库（避雷 Tdengine）

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使用了 Tdengine 2.x 近三年的时间，但是最近遇到严重的 BUG ，现在需要考虑迁移至其他数据库。

最好符合以下要求（按优先级排列，最少满足 1 和 2 即可）

  1. 开源
  2. 高压缩比
  3. 允许冷热分级
  4. 允许按照时间间隔查询数据

最后再吐槽一下 Tdengine ，删除数据后居然无法释放硬盘空间，还妄图让用户买企业版，真是滑稽至极...

Issue 1 Issue 2

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