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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?.
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PostgreSQL 10.12 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4), 64-bit |
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id | code | qty | price |
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1 | firde | 3 | 30 |
1 | fire | 2 | 6 |