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Help with an interesting Postgres question: Why isn't an Index Only Scan used on a partition accessed via the parent table?.
10 rows affected
| campaign | sales_channel | product | quantity |
|---|---|---|---|
| C001 | online | product_04 | 1300 |
| C003 | fair | product_07 | 1000 |
| C002 | retail | product_05 | 2900 |