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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?.
CREATE TABLE
INSERT 0 5000
ALTER TABLE
UPDATE 5000
CREATE INDEX
| QUERY PLAN |
|---|
| Limit (actual time=26.757..26.887 rows=13 loops=1) |
| -> Index Scan using idx_data_point on data (actual time=26.755..26.881 rows=13 loops=1) |
| Order By: (geog <-> '0101000020E61000000000000000001A409A99999999594840'::geography) |
| Planning Time: 0.512 ms |
| Execution Time: 26.973 ms |
EXPLAIN