将结构片插入Postgresql jsonb []

Question

I have a struct slice that I'm trying to marshal into a json array for insert into a postgresql database with a column type of jsonb[].

type t struct {
    A int
    B string
}
a := t{1, "hello"}
b := t{2, "goodbye"}

var c []t
c = append(c, a, b)

bytes, _ := json.Marshal(c)

stmt := `INSERT INTO test (s, ja) VALUES ($1, $2)`
_, err = db.Exec(stmt, "test", bytes)
if err != nil {
    log.Fatal("Insert error:", err)
}

I get the error:

pq: malformed array literal: "[{"A":1,"B":"hello"},{"A":2,"B":"goodbye"}]"

How can I make the data appropriate for a jsonb[] column?