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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 13.10 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-16), 64-bit |
SELECT 1
CREATE TABLE
CREATE TABLE
INSERT 0 5
place | population |
---|---|
town | 100 |
town | 100-200 |
town | 10000 |
town | 38 500 |
town | 38600 |
SELECT 5
place | population |
---|---|
town | 10000 |
town | 38600 |
SELECT 2
place | population |
---|---|
town | 10000 |
town | 38600 |
SELECT 2
place | population |
---|---|
town | 10000 |
town | 38600 |
SELECT 2
INSERT 0 2
place | population |
---|---|
town | 100-200 |
town | 38 500 |
SELECT 2