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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 9.5.25 on x86_64-pc-linux-musl, compiled by gcc (Alpine 11.2.1_git20220219) 11.2.1 20220219, 64-bit |
SELECT 1
CREATE EXTENSION
INSERT 0 1
section | status | count |
---|---|---|
A | Active | 1 |
A | Inactive | 2 |
B | Active | 4 |
B | Inactive | 5 |
SELECT 4
section | active | inactive |
---|---|---|
A | 1 | 2 |
B | 4 | 5 |
SELECT 2