database - Postgres 内部结构

Question

我想了解 postgres 如何将数据写入文件（FileFormat & Structure）。用于存储这些数据的编码方法和压缩方法是什么。压缩是单元级别还是整个表级别。数据修改如何在文件中发生。postgres 如何优化它的 IO 处理？任何人都可以发送与这些主题相关的链接或文档。

Answer 1

I found the below links
[https://momjian.us/main/presentations/internals.html][1]
[http://www.interdb.jp/pg/][2]
[https://www.postgresql.org/docs/10/internals.html][3]
But I agree with [@stickybit][4], please search the web it will save the editors time & you will also get a wealth of knowledge.


  [1]: https://momjian.us/main/presentations/internals.html
  [2]: http://www.interdb.jp/pg/
  [3]: https://www.postgresql.org/docs/10/internals.html
  [4]: https://stackoverflow.com/users/9661424/sticky-bit