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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?.
version |
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PostgreSQL 13.4 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1), 64-bit |
5 rows affected
mid | col1 |
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1 | REQUIRED STRING |
2 | REQUIRED STRING, Optional A, Optional B |
3 | Optional A, REQUIRED STRING, Optional B |
4 | Optional A, Oprional X, Optional B |
5 | REQUIRED STRING 842, Lessor Optional A, Optional B |
mid | col1 |
---|---|
2 | REQUIRED STRING, Optional A, Optional B |
3 | Optional A, REQUIRED STRING, Optional B |
5 | REQUIRED STRING 842, Lessor Optional A, Optional B |
mid | col1 |
---|---|
1 | REQUIRED STRING |
2 | REQUIRED STRING, Optional A, Optional B |
3 | Optional A, REQUIRED STRING, Optional B |
5 | REQUIRED STRING 842, Lessor Optional A, Optional B |
mid | col1 |
---|---|
2 | REQUIRED STRING, Optional A, Optional B |
3 | Optional A, REQUIRED STRING, Optional B |
5 | REQUIRED STRING 842, Lessor Optional A, Optional B |