Idempotency Key Store

Idempotency Key Store

Create the idempotency_keys table so repeated requests can be recognized safely. key as text must be the primary key; also include required request_hash as text and required created_at as timestamp.

Solution requirement
Just CREATE/ALTER/DROP — no trailing SELECT needed.
PostgreSQLv16

Your query result will appear here

No starting schema

This task starts with no tables — you'll create them via CREATE TABLE.

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