User Lookup for Orders

Order reports constantly match orders.user_id to users, but orders has no fast path on that field. Add an index on user_id in orders to speed up this access pattern.

Speed this query up with an index
SELECT * FROM orders o JOIN users u ON u.id = o.user_id

Doar CREATE/ALTER/DROP — nu este nevoie de un SELECT la final.

PostgreSQLv16

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