PGvector

[Ryszard-Trojnacki]

Hi Rob,

I wanted to implement PGvector types, but there are few thing that I'm not sure:

1. As documented in PGVector there is need to register types PGvector.registerTypes(Connection conn). Is there any option (Listener) to include this in Ebean? Or should I create a DriverWrapper for this like it is done in Postgis driver (?). But what if I would like to use PGvector with Postgis?
2. Beyond types, PGvector offers important distance functions which probably should also be implemented. How can I do this for query beans? Is there a possibility to extend query beans for custom types?
3. There are also two index options. This would require an additional annotation or use of Ebean @Index.definition. In the second scenario nothing is needed.

--
Greetings,
Ryszard Trojnacki

[rbygrave]

Register types PGvector.registerTypes(Connection conn)

For ebean-datasource, we could add a service loading mechanism that hooks into when new connections are created. So I had that in mind for this. That will not work for folks not using ebean-datasource though.

distance functions ... Is there a possibility to extend query beans for custom types?

I think we'd need to add a new vector type for query beans.

index options

Ebean @Index does allow any index definition so we already have that required support there.