PostgreSQL vs Redis: What are the differences?
PostgreSQL: A powerful, open source object-relational database system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions; Redis: An in-memory database that persists on disk. Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
PostgreSQL belongs to "Databases" category of the tech stack, while Redis can be primarily classified under "In-Memory Databases".
"Relational database", "High availability " and "Enterprise class database" are the key factors why developers consider PostgreSQL; whereas "Performance", "Super fast" and "Ease of use " are the primary reasons why Redis is favored.
PostgreSQL and Redis are both open source tools. Redis with 37.4K GitHub stars and 14.4K forks on GitHub appears to be more popular than PostgreSQL with 5.44K GitHub stars and 1.8K GitHub forks.
According to the StackShare community, Redis has a broader approval, being mentioned in 3264 company stacks & 1786 developers stacks; compared to PostgreSQL, which is listed in 2740 company stacks and 2174 developer stacks.
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