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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?.
| id | json |
|---|---|
| 1 | {"1":"111", "2":"222"} |
| 2 | {"1":"111", "2":"333"} |
| 3 | {"1":"444", "2":"222"} |
| 4 | {"1":"666", "2":"111"} |
| 5 | {"1":"777", "2":"888"} |
SELECT 5
| id | json |
|---|---|
| 1 | {"1":"111", "2":"222"} |
| 2 | {"1":"111", "2":"333"} |
| 4 | {"1":"666", "2":"111"} |
SELECT 3