PostgreSQL is a powerful, open-source relational database system renowned for its robustness, scalability, and adherence to SQL standards. Compatible with various operating systems like Linux, Windows, Mac OS X, Solaris, and BSD, PostgreSQL offers extensive support for ACID transactions, views, joins, foreign keys, stored procedures, and triggers. It includes a wide range of data types such as INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP. Key features of PostgreSQL include high concurrency, online/hot backups, asynchronous replication, nested transactions, and advanced query optimization. The database system imposes no maximum size for databases, with tables supporting up to 32 TB, rows up to 1.6 TB, and fields up to 1 GB. While the number of rows in a table is unlimited, columns range between 250 and 1600 per table, and the number of indexes per table is also unrestricted. For those passionate about data, PostgreSQL offers a highly reliable and scalable solution that meets diverse and demanding requirements.

PostgreSQL is a great tool! The community is really nice, and I love the built-in JSON support. There were some learning curves for me, but once I got past them, it's been smooth sailing. Worth the effort!