PostgreSQL Table Bloat and Defragmentation: Autovacuum vs VACUUM vs VACUUM FULL
When rows are updated or deleted in PostgreSQL, the database does not immediately remove the old row versions from the table. Instead, PostgreSQL us…
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PostgreSQL 19 Beta 4: пять изменений, которые я бы проверил на staging до релиза
24 сентября вышла PostgreSQL 19 Beta 4. До release candidate осталось совсем немного, и на этом этапе уже интереснее смотреть не на длинный список н…
PostgreSQL index bloat: why VACUUM never shrinks an index, and how to measure it with avg_leaf_density
Short answer: If a PostgreSQL table's heap is healthy and its indexes are six times larger than the heap, autovacuum is not broken and never was. VA…