Latest 20 User Orders
The account page often shows the latest 20 rows from orders for one user_id, starting with the newest created_at. Add an index on user_id and created_at in newest-first order.
Speed this query up with an index
CREATE INDEX ix_orders_user_created ON orders (user_id, created_at DESC)
Kun CREATE/ALTER/DROP — ingen afsluttende SELECT nødvendig.
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