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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 4
CREATE TABLE
INSERT 0 4
the_date pricing_date good quantity price
2013-08-02 2013-08-01 egg 1 110
2013-08-09 2013-08-07 egg 5 120
2013-08-02 2013-07-30 pear 2 220
2013-08-09 2013-08-06 pear 7 200
SELECT 4
the_date pricing_date good quantity price
2013-08-09 2013-08-07 egg 5 120
2013-08-02 2013-08-01 egg 1 110
2013-08-09 2013-08-06 pear 7 200
2013-08-02 2013-07-30 pear 2 220
SELECT 4