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DatabaseTransaction isolation levels decoded: dirty reads, non-repeatable reads, phantoms, and how Read Committed, Repeatable Read, and Serializable trade safety for speed.
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#MVCC
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Database Transaction Isolation Levels Explained: Read Committed to Serializable
· 10 min read
DatabaseHow Postgres VACUUM works: why MVCC leaves dead tuples behind, how autovacuum reclaims them, and how to diagnose and fix table bloat before it slows queries.
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