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Nitpick: no need for Redis if you have Postgres. It can have comparable performance when similar tradeoffs are used.

• dalyons 4y ago
  That’s just not true as a categorical statement. Performance aside redis has all sorts of interesting data types, operations and primitives that pg doesn’t that you might want to leverage. It fulfills a different role
• moneywoes 4y ago
  Can you elaborate? Is postgres viable for caching?