I am a developer and know much less about db administration so seeking help regarding pgsql create extension concept.
I have used crypt() function in one of the stored proc to hash user password. But what I observed the next day I started my pc that the same thing failed as cryptographic functions became unavailable upon restart. It showed message like functions “gen_salt()” / “crypt()” is unknown or not defined. I executed “create extension pgcrypto;” once and it started working.
I need to konw – how to handle this in prod environment? Is there a way to make this module permanently available in db even if db is restarted ?
Or Do I have to instruct server manager to run this command in case they required to restart db server ?
Or Can I write this statement in stored proc itself so that every-time it will create extension before using cryptographic functions ?
Moreover, we are using a read-replica of db, where it did not allowed to execute this “create extension” statement as there is read permission only. So how to make this cryptographic functions available in such read-only environment?
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