如何在Go中将SQL数组扫描到[] int64？

Question

I am scanning an array of int from Postgres DB and it is returning as []uint8 . I need them in []int64 , how can I convert them into []int64 or how can I return them from the DB as []int64 ? In my query I am selecting using the Array function in Postgres: Array(col1) where col1 is serial.

The error I am getting is:

unsupported Scan, storing driver.Value type []uint8 into type []int64

Answer 1

If you're using github.com/lib/pq , just use Int64Array .

col1arr := []int64{}
arr := pq.Int64Array{}
err := rows.Scan(&arr)
// ...
col1arr = []int64(arr)