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Why does everyone run ancient Postgres versions?

(neon.tech)
264 points davidgomes | 1 comments | 17 Oct 24 21:23 UTC | HN request time: 0.212s | source
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paulryanrogers ◴[17 Oct 24 23:59 UTC] No.41875055[source]▶
Upgrades are hard. There was no replication in the before times. The original block-level replication didn't work among different major versions. Slony was a painful workaround based on triggers that amplified writes.

Newer PostgreSQL versions are better. Yet still not quite as robust or easy as MySQL.

At a certain scale even MySQL upgrades can be painful. At least when you cannot spare more than a few minutes of downtime.

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1. darth_avocado ◴[18 Oct 24 03:46 UTC] No.41876174[source]▶
> At least when you cannot spare more than a few minutes of downtime.

I think it boils down to this. We used to constantly be running the obsolete pg version until it became an emergency mostly because upgrading with the tooling available at the time was very painful. Today however, we stay relatively up to date. Once you figure out the data replication, you can almost do blue green deployments on databases with almost no down time.