Put some light on multi-version concurrency control?
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Answer Posted / Sunil Kumar Gautam
Multi-Version Concurrency Control (MVCC) is a technique used by PostgreSQL to allow multiple transactions to access the database concurrently without blocking each other. MVCC allows each transaction to see a consistent snapshot of data, even if other transactions are modifying that data simultaneously. This is achieved by storing multiple versions of each row and keeping track of the transaction IDs that have modified the data.
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