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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 |
|---|
| PostgreSQL 15.0 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-10), 64-bit |
SELECT 1
| x | current_in | better_in | better_in_arr | current_not_in | better_not_in | better_not_in_arr |
|---|---|---|---|---|---|---|
| 1 | t | t | t | f | f | f |
| 2 | null | f | f | null | t | t |
| null | null | t | t | null | f | f |
SELECT 3