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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 |
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PostgreSQL 16.0 (Debian 16.0-1.pgdg120+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit |
SELECT 1
CREATE TABLE
CREATE FUNCTION
field1 | s1 |
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1 | aaa |
SELECT 1
field1 | s1 |
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2 | yyy |
SELECT 1
field1 | s1 |
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1 | bbb |
SELECT 1
field1 | s1 |
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2 | yyy |
1 | bbb |
SELECT 2