![]() MySQL does not has MVCC suppoot in MyISAM. PostgreSQL provides concurrency very efficiently with its MVCC implementation, which attains very high levels of concurrency even in large data sets. ![]() Concurrency SupportĬoncurrency in DBMS systems means that more then one users can access the same data at the same time. On the other hand, in recent years PostgreSQL has also been optimized to erase the differences when it comes to heavy data writes. These functionalities are essential for enterprise or consumer-scale applications, so using the outdated engine is really not an option. If using InnoDB (which allows transactions, key constraints, and other important features), differences are not considerable (if they even exist). Even today MySQL is still very fast at reading data, but only if using the old MyISAM engine. The performance gap between MySQL and PostgreSQL have been largely cleared in recent releases. Previously, PostgreSQL’s running performance was really balanced – read operations were generally slower than MySQL, but it has the capacity of writing large amounts of data more efficiently when hardware resources are compared to MySQL and it always handled concurrency better. It was built to be feature-rich, extendable and standards-compliant. PostgreSQL projects itself as “the most advanced open-source relational database in the world”. In the past, MySQL was a first choice of developers for read-heavy workloads, even at the cost of concurrency when mixed with write operations. MySQL can be a good choice if you think you are going to borrow code from other open source projects. PostgreSQL is also a great choice if you are planning to upgrade to oracle later on. But there are not so many extensions, if you are trying to run other LAMP stack applications. There are some exception, there is a PostgreSQL plugin for WordPress. If you are trying to run somebody else’s software that was written for MySQL then PostgreSQL really isn’t an option. If you are doing new development we really suggest that you go with PostgreSQL. Part of that relates to, how does it do auditing and transaction handling. MySQL is not ACID certified so it doesn’t do all of these things that PostgreSQL does. ACID is a standard for whether or not your data integrity is going to be held across all type of queries and it is robust enough to always return the same results without faults. In terms of reliability, PostgreSQL is a better choice because it’s ACID Compliance. Now there are many variances in the way certain queries run on both systems. MySQL has diverted from the SQL standards. PostgreSQL is SQL compliant therefore any code that you write for PostgreSQL will port very easily to oracle. It is really about whether or not at some point of time you’re going to run a closed source better supported option like oracle. If you really have to choose running between PostgreSQL vs MySQL for a new development project. PostgreSQL better implements a lot of the things that oracle does in an open source environment even though MySQL is owned by oracle. ![]() PostgreSQL really is SQL compliant unlike MySQL. This article is technical comparison between PostgreSQL vs MYSQL performance. On the other hand MySQL is managed by Oracle and has extensive scope for applications. It’s a great enterprise quality SQL solution. PostgreSQL is probably the biggest open source competitor to MySQL and for good reasons. ![]() We layed-out the pointers how they differ from each other and how to choose one over the other. Here we tried to list out all the possible things you should consider when choosing between PostgreSQL vs MySQL for a given application or given sets of requirements.
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