Add on-demand WAL download to slotfuncs (v15) #467
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tristan957
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Aug 12, 2024
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## Problem Currently we can have an issue where if someone does `pg_logical_slot_advance`, it could fail because it doesn't have the WAL locally. ## Summary of changes Adds on-demand WAL download and a test to these slot funcs. Before adding these, the test fails with ``` requested WAL segment pg_wal/000000010000000000000001 has already been removed ``` After the changes, the test passes Relies on: - neondatabase/postgres#466 - neondatabase/postgres#467 - neondatabase/postgres#468
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