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By that point we had a pretty large database with 6 years of history for one of the highest-traffic educational web sites in the world. The migration would not have been trivial, and the arguments for it boiled down to “we could stop wasting time on this assortment of MySQL bugs and quirks that we’ve mostly learned to work around and live with”. It would also have
Why hasn’t anybody outside edX/2U added PostgreSQL support?
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