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Discussion on: Building a Graph in SQL Land

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Sandor Dargo

Thanks for your story. It was definitely interesting to read.

I do agree with your third lesson learnt that one should use the right tool for the right job.

And I tend to agree that nobody should use a shiny new technology just for the sake of using that shiny new technology. Even though in some cases it might be a good decision.

But, I think you use this idea showing that for you it was a bad idea to use a "shiny new technology". I think it would have been a good thing, but actually, you didn't introduce any new technology. If I understand well, you kept using Postgres and ActiveRecord that were not new at all to you.

On the other hand, you tried to implement an almost 300 years old concept (the one of graphs) with old tools and it didn't work out that well. Reading about the issues you had on your journey, those are the main reasons why one should consider using a native graph database.

Anyway, I don't want to judge old decisions, in hindsight many are clever. And it's always respectable to admit bad decisions, failures.

The main thing I don't agree with that you used anything new and shiny as the concept of graphs is far from new and you didn't use any new technology based on graphs.