In the below code:

type Column2Type []*T

type T struct {
    ID        int       `json:"id"`
    CreatedAt Timestamp `json:"created_at"`
}


t, _ := time.Parse("2006-01-02T15:04:05", "2024-06-25T04:33:55")

// helper function to fill column 2
getColumn2 := func() []byte {
    c := Column2Type{
        &T{
            ID:        2,
            CreatedAt: Timestamp{Time: t},
        },
    }
    b, err := json.Marshal(c)
    if err != nil {
        panic(err)
    }
    fmt.Println(c[0].CreatedAt).  // 2024-06-25 04:33:55 +0000 UTC
    fmt.Println(string(b))       // has extra text "Z" - [{"id":2,"created_at":"2024-06-25T04:33:55Z"}]
    return b
}

Implication:

Table row scanning for column ‘col_2_name’ gives error: parsing time "2024-06-25T04:33:55Z": extra text: "Z"

How to avoid json.Marshal() to add timezone Z?