Key features of PostgreSQL:

1. Advanced SQL Support: PostgreSQL supports a comprehensive set of SQL standards, including complex queries, joins, and subselections.
2. Data Integrity: It offers strong data integrity with features such as ACID compliance (Atomicity, Consistency, Isolation, Durability), which ensures reliable transactions.
3. Extensibility: PostgreSQL allows users to define their own data types, functions, operators, and index methods, making it highly customizable.
4. NoSQL Support: In addition to relational data, PostgreSQL can also store and edit JSON and XML data, making it function as a hybrid database.
5. Concurrency and performance: It uses Multi-Version Concurrency Control (MVCC), which ensures high concurrency and better performance when executing multiple transactions.
6. Geographic data: PostgreSQL has excellent geographic information support with the PostGIS extension, making it ideal for GIS applications.
7. Safety: It offers various security options, such as authentication, encryption, and role management, for securing data and access.
8. Scalability: PostgreSQL can be used on both small and large datasets and can be easily scaled to meet the needs of growing applications.
9. Active community: PostgreSQL has a large and active community that continuously contributes to the development of new features and improvements, as well as comprehensive documentation and support.
10. Cross-platform: PostgreSQL is available on various operating systems, including Linux, Windows, and macOS, making it versatile for a variety of environments.

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