For most (but not all) purposes, PostgreSQL is approximately as good, the devil is in the details of your specific application. Oracle is a competent OLTP syste

For most (but not all) purposes, PostgreSQL is approximately as good, the devil is in the details of your specific application. Oracle is a competent OLTP system but it makes a different set of tradeoffs than PostgreSQL. For geospatial performance, as an example, neither platform clearly wins -- it goes back and forth depending on the details of what you are doing. The tl;dr: start with PostgreSQL and evaluate from there.