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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 13.4 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1), 64-bit |
8 rows affected
key_name | context | created_at | ordercol |
---|---|---|---|
A.1 | ctx_A | 2021-10-28 21:35:23.900572+01 | 1 |
A.2 | ctx_A | 2021-10-28 21:35:23.900572+01 | 2 |
A.3 | ctx_A | 2021-10-28 21:35:23.900572+01 | 3 |
A.4 | ctx_A | 2021-10-28 21:35:23.900572+01 | 4 |
B.1 | ctx_B | 2021-10-28 21:35:23.900572+01 | 1 |
B.2 | ctx_B | 2021-10-28 21:35:23.900572+01 | 2 |
B.3 | ctx_B | 2021-10-28 21:35:23.900572+01 | 3 |
B.4 | ctx_B | 2021-10-28 21:35:23.900572+01 | 4 |
1 rows affected
key_name | context | created_at | ordercol |
---|---|---|---|
A.1 | ctx_A | 2021-10-28 21:35:23.900572+01 | 1 |
A.3 | ctx_A | 2021-10-28 21:35:23.900572+01 | 2 |
A.4 | ctx_A | 2021-10-28 21:35:23.900572+01 | 3 |
A.2 | ctx_A | 2021-10-28 21:35:23.900572+01 | 4 |
1 rows affected
key_name | context | created_at | ordercol |
---|---|---|---|
B.1 | ctx_B | 2021-10-28 21:35:23.900572+01 | 1 |
B.4 | ctx_B | 2021-10-28 21:35:23.900572+01 | 2 |
B.2 | ctx_B | 2021-10-28 21:35:23.900572+01 | 3 |
B.3 | ctx_B | 2021-10-28 21:35:23.900572+01 | 4 |