How to Migrate MySQL to PostgreSQL Without Breaking Everything (With Real Examples)

So you've outgrown MySQL. Maybe you need better JSON support, real window functions, or you're moving to a managed cloud database that defaults to Postgres. Whatever the reason — MySQL to PostgreSQL migration trips up almost everyone the first time. The two dialects look similar but behave very differently under the hood. This guide walks through the actual syntax differences, real failure points, and how to convert a MySQL dump cleanly. Why MySQL Dumps Don't Import Directly into PostgreSQL Here