How Does PostgreSQL Handle Concurrency?
- Postgres makes use of MVCC through keeping multiple versions of each row in the database. Every time a transaction modifies a row, PostgreSQL makes a new version of the row and adds its transaction ID.
- The other transactions can see the statement until the time the modifying operation completes, therefore giving the opportunity to maintain consistency and isolation.
Example:
-- Example of updating a row in PostgreSQL
BEGIN;
UPDATE your_table SET column = value WHERE condition;
COMMIT;
Multiversion Concurrency Control (MVCC) in PostgreSQL
PostgreSQL is a powerful open-source relational database management system known for its robustness and reliability. One of its key features that sets it apart from other databases is Multiversion Concurrency Control (MVCC). MVCC allows multiple transactions to occur concurrently while ensuring data consistency and integrity.
In this article, We will learn about Getting Started with Multiversion Concurrency Control (MVCC) in PostgreSQL in detail.
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