Which database are you using and what kind of extensions are we talking about? (I often create Go types which are then serialized to some useful representation

Which database are you using and what kind of extensions are we talking about? (I often create Go types which are then serialized to some useful representation in the database, and de-serialized to Go types when I query the database. I usually use SQLX for most interaction with SQL databases since it does a lot of the tedious work for me (without introducing ORM'y madness). On the rare occasion where this eats too much into performance I can always use the DB library directly)