SQL Server and Oracle are also fantastic software. There may not be any good reason to use them today for a new product, but they're far from obsolete. Oracle

SQL Server and Oracle are also fantastic software. There may not be any good reason to use them today for a new product, but they're far from obsolete. Oracle has a lot of advanced functionality that no other RDBMS really has, and I do hit sharp edges of PG (especially in unexpected query planning decisions) more than I do in SQL Server. And, as much as I hate MySQL, I have a few instances that are approaching 10 years old with billions of records that have almost never needed query optimization. I just added indices in logical places and they just work somehow.