Distinct Friend Requests

Count the number of unique friend requests. Direction does not matter: a request from A to B and a request from B to A count as the same pair, and duplicate requests are counted once. Return a single column unique_requests.

Expected output sample

This is what a correct answer looks like — its row count is its own, it doesn't have to match the schema tables. Your answer must use the same column names as this sample — alias them with AS if needed.

unique_requests
6

Your query result will appear here

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