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A story about how I dug into the PostgreSQL sources to write my own WAL receiver

by alzhi7 on 4/18/2026, 3:47:57 AM

https://medium.com/@mailbox.sq7/a-long-story-about-how-i-dug-into-the-postgresql-source-code-to-write-my-own-wal-receiver-and-what-53fd251d8f25

Comments

by: JSR_FDED

You really get a sense for how much the author learned from this experience. And I like how he developed a respect for C.<p>Given all the corner cases he describes, it seems like a good example of something you would never ever want to vibe code.

4/19/2026, 1:30:02 AM


by: samokhvalov

nice work<p>I wonder if you considered WAL-G, which is also written in Go<p>and has this: <a href="https:&#x2F;&#x2F;github.com&#x2F;wal-g&#x2F;wal-g&#x2F;blob&#x2F;master&#x2F;docs&#x2F;PostgreSQL.md#wal-receive" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;wal-g&#x2F;wal-g&#x2F;blob&#x2F;master&#x2F;docs&#x2F;PostgreSQL.m...</a>

4/19/2026, 12:19:46 AM


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4/18/2026, 3:47:57 AM