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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 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
oid relname relkind relpersistence relreplident
SELECT 0
CREATE TABLE
oid relname relkind relpersistence relreplident
16387 test_partition_uq1 I p n
SELECT 1