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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 14.7 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
INSERT 0 3
CREATE TABLE
INSERT 0 4
report_date visitors_count apples_consumed
2022-01-01 2 5
2022-02-01 3 7
2022-03-01 3 2
SELECT 3