The PlanetScale vectors public beta

I'm very interested to see this alongside MySQL 9 (https://dev.mysql.com/doc/refman/9.0/en/vector-functions.htm...), and MariaDB (https://mariadb.com/kb/en/vector-overview/).

Will these converge on a common syntax for vector fields, indexes, and comparison functions in the near future? Or will vector implementations just add momentum to the increasing incompatibility in the MySQL-ish ecosystem?

Our vector implementation is fully compatible with the syntax for vector fields and comparison functions in MySQL 9 -- we have carefully backported all the changes to our version of MySQL 8 to ensure full backwards and forwards compatibility. The index syntax is specific to PlanetScale because the open-source MySQL 9 preview does not yet have support for ANN indexes on vector columns, but we're committed to being as compatible as possible in the future and to minimize fragmentation. I do agree that fragmenting the ecosystem is not great!