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Interesting to note is that early versions of Postgres, we're talking the pre-6 versions around 1995 here, were awful. Not like I was a very sophisticated user at that time myself but it definitely ate my data back then - we switched to MSQL at that time which at least didn't do that.

Wasn't it still basically a university project for researching MVCC at that point? I love universities of course but we must admit they produce interestingly-architected abandonware sometimes.

My sense was that it got a pretty thorough review and revision/rewrite in the transition from Postgres to PostgreSQL.

PostgreSQL has evolved a LOT in the last decade even. I thought the university project was looking at OO paradigms in relational databases (inheritance between relations and the like).

The change from Postgres to PostgreSQL was largely a UI/API change and the move from QUEL to SQL. However, over time virtually all of the software has been reviewed and rewritten. It's an excellent project, and I have been using it since 6.5.......

That was 16 years ago. Since then, PostgreSQL engineers spent a LOT of time proving the reliability of their engine. And today, 16 years later, we can consider it reliable.

Most key-value databases didn't prove (as in: show me actual resistance tests, not supercompany123 uses it) that they are reliable. The day they do, I'll be the first one to use them. Until then, it's just a toy for devs who don't want to deal with ER models.

you misunderstand me. I LOVE postgresql. It is the best database ever and I try to use it as much as possible. My only point was, they started out as unstable and untrustworthy just like anything else would.

I agree. There was no WAL logging, for instance. Most people consider 7.4 the first actually-possibly-not-a-terrible-idea release.

Then again, Postgres -- the project -- did not try to position itself (was there even such a thing as "positioning" for Postgres 16 years ago?) as a mature, stable project that one would credibly bet one's business on.

Lots of early database releases are going to be like Mongo, the question is how much the parties at play own up to the fact that their implementation is still immature and present that starkly real truth to their customers. So far, it seems commercial vendors are less likely to do that.

Well, 8.0 is really the first really good release.

However, actually-not-a-terrible-idea is pretty relative, when you look at how the industry has evolved in the mean time. I mean, compared to MySQL at the time, PostgreSQL 6.5 was really not a terrible idea. 7.3 was the first release I didn't have to use MySQL as a prototyping system though.

And with 9.x things are getting even better.

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