Yes, MongoDB is more flexible in some searches and in one particular indexing scenario - Postgres does not provide an index supporting range queries for arrays. But, it is not a common case by any means and there are workarounds.
// block: Wait for space (unbounded pending queue)
，这一点在服务器推荐中也有详细论述
当流量增长的天花板逐渐见顶，抖音或许也意识到：仅靠短视频已难以支撑其下一阶段的扩张。它必须在既有体系之外，寻找新的内容形态，补上长期缺失的那块拼图。，详情可参考heLLoword翻译官方下载
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