Difference between MariaDB and PostgreSQL

1. MariaDB :
MariaDB is an open source relational database management system (RDBMS) that is a compatible drop-in replacement for the widely used MySQL database technology. It is developed by MariaDB Foundation and initially released on 29 October 2009. MariaDB has a significantly high number of new features, which makes it better in terms of performance and user-orientation than MySQL.

2. PostgreSQL :
PostgreSQL is a powerful, open-source Object-relational database system. It provides good performance with low maintenance efforts because of its high stability. PostgreSQL was the first DBMS that implemented multi-version concurrency control (MVCC) feature.

Difference between MariaDB and PostgreSQL :

S.NO.	MARIADB	POSTGRESQL
1.	Developed by MariaDB Corporation Ab and MariaDB Foundation on 2009.	Developed By  PostgreSQL Global Development Group on 1989.
2.	It is a MySQL application compatible open source RDBMS, enhanced with high availability, security, interoperability and performance capabilities.	It is widely used open source RDBMS.
3.	MariaDB is written in C and C++ languages.	PostgreSQL is written in C languages.
4.	The primary database model for MariaDB is Relational DBMS.	Also the primary database model for PostgreSQL is Relational DBMS.
5.	It has two Secondary database models – Document store and Graph DBMS.	It has Document store as Secondary database models.
6.	Server operating systems for MariaDB are FreeBSD, Linux, Solaris and Windows.	Server operating systems for PostgreSQL are FreeBSD, HP-UX, Linux, NetBSD, OpenBSD, OS X, Solaris, Unix and Windows.
7.	It supports Server-side scripting.	It has user defined functions for Server-side scripts
8.	Supported Partitioning method are – Horizontal partitioning, sharding with Spider storage engine and Galera cluster.	In PostgreSQL, partitioning can be done by range, list and hash.
9.	It support two replication methods – Master-master replication and Master-slave replication.	It support only one replication methods – Master-master replication
10.	It supports in-memory capabilities.	It does not supports in-memory capabilities.