What are some real-world examples of MVCC?
An example of an AI chatbot conversation about real-world applications of MVCC.
What are some real-world examples of MVCC?
MVCC, or Multi-Version Concurrency Control, is used in databases like PostgreSQL and Oracle. It allows multiple transactions to occur without locking the database, improving performance.
Can you explain how it works in PostgreSQL?
In PostgreSQL, MVCC works by keeping multiple versions of a row. When a transaction modifies a row, it creates a new version instead of overwriting the existing one, allowing other transactions to read the old version.
What are the benefits of using MVCC?
The benefits include increased concurrency, reduced locking, and improved performance for read-heavy workloads.
Are there any downsides to using MVCC?
Yes, potential downsides include increased storage requirements for maintaining multiple versions and complexity in garbage collection of old versions.
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