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Ask HN: I'm a New PostgreSQL Hacker – What Problems Do You Face with Postgres?
5 points by DumBthInker007 22 hours ago | hide | past | favorite | 6 comments
Hi HN,

I'm a developer diving deep into PostgreSQL internals, aiming to contribute meaningfully to the project. I have a strong grasp of core components like the internal architecture, physical replication, WAL (Write-Ahead Logging), and buffer management. I'm now expanding into areas like logical replication, asynchronous I/O (AIO), the optimizer, and beyond.

To learn and grow as a Postgres hacker, I want to hear directly from you—PostgreSQL users—about the problems you face, big or small. These could be operational challenges, performance bottlenecks, confusing behaviors, missing features, or friction points in your workflows.

For me, it's a win-win: you get a contributor trying to tackle real problems, and I get to deepen my understanding by working on issues that matter in the real world. If a problem resonates with me, I’ll do my best to investigate, learn, and potentially create a patch to address it.

Thanks—and I look forward to hearing from you!






I’d like to see a true monotonic counter in Postgres. Serials can increment out of order when multiple transactions are active. We can obtain the WAL LSN, but it’s not related to the currently active transaction. I really like FoundationDB’s versionstamp, would be great to have that in Postgres.

Thanks for the reply,will surely look into it.

I'd like to see something like MySQL's Group Replication in PostgreSQL.

HA is still a wheel you have to re-invent yourself every time with PostgreSQL.

References for what i'm talking about:

- Group Replication: https://dev.mysql.com/doc/refman/8.4/en/group-replication.ht...


thanks for the quick reply, will surely look into it.

You're welcome. The bigger picture is probably this: https://dev.mysql.com/doc/refman/8.0/en/mysql-innodb-cluster...

thanks for sharing.



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