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Hot updates (heap only tuple) boost postgresql dml performance The tuple data associated with that row version is removed, and its item identifier is converted to a redirect that points to the oldest version that may still be visible to some concurrent transaction. This article explains the concept, shows examples and gives tuning advice.

What are heap only tuples (hot) Postgresql updates can trigger costly index rewrites—even without changing indexed columns Heap only tuples (hot) are a postgresql feature designed to optimize the storage and retrieval of table data by eliminating redundant index entries and reusing.

Heap only tuple (hot) the hot was implemented in version 8.3 to effectively use the pages of both index and table when the updated row is stored in the same table page that stores the old row.

There's a way for postgres to only update the heap (the table), avoiding having to update all the indexes That's called a hot update, hot stands for heap only tuple Understanding hot updates and their interaction with page fill factor can be a really nice tool in the box for getting performance with existing infrastructure.

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