MySQL hasn’t had nearly as many innovations. That said, for a long time, it was often faster for simpler queries, and especially range queries, IFF your schema

MySQL hasn’t had nearly as many innovations. That said, for a long time, it was often faster for simpler queries, and especially range queries, IFF your schema was designed to exploit the fact that it’s a clustering index, so rows are physically located next to the PK. If you’re using UUIDv4 PKs, you’re throwing away its entire advantage, and Postgres will almost certainly be faster. One notable exception for MySQL is INSTANT DDL in 8.x, thanks to contributions from Tencent, which is an extremely nice QoL upgrade that Postgres doesn’t have. The other is logical replication, something Postgres does support now (and has for several years), but didn’t for a long time.