Oris
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8 tadan 1-dars
Given an index on (customer_id, created_at), which query can NOT use it efficiently?
WHERE created_at > '2026-01-01'
WHERE customer_id = 5
WHERE customer_id = 5 AND created_at > '2026-01-01'
WHERE customer_id = 5 ORDER BY created_at
Tekshirish
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