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does Druid require writer permissions when fetching data from RDS PostgreSQL? I have just noticed that if I configure the lookup’s connectURI with the RDS’s writer instance endpoint then it works, but if I use the RDS’s reader instance it does not and get the above error message

I was thinking about this yesterday as I was checking RDS and writer instance got all connections. ‘Can I split these connections between the instances? Which services I can plug into the readers?’ I don’t have the anwser, but im curious.