如何将float32数组保存为来自gorm的双精度

Question

I try save float32 in golang to db (postgresql). I use gorm. My Field in struct:

    Cluster [512]float32 `gorm:"column:cluster;type:float[]"`

When i save to db, log mode show me right sql, but write error:

converting argument $3 type: unsupported type [512]float32, a array

Сan anyone have an idea how to tell the postgres what to do? Thank you!

Answer 1

I've encountered a problem like this. I suggest you make you own type for your array that implements

type Valuer interface

and

type Scanner interface

from database/sql package.

Also you could try pq.Float64Array type instead of float slice (I know that is float64, but it is the only type they have) from github.com/lib/pq.