nil byte array []byte(nil) is encoded as empty byte array []byte([]) instead of nil

[YesYouKenSpace]

Hello,

Actual

Seems like lib/pq changes []byte(nil) to []byte([]) before storing it in the database
Refer to

pq/encode.go

Line 589 in 3d61320

func encodeBytea(serverVersion int, v []byte) (result []byte) {

and

pq/encode.go

Line 31 in 3d61320

func encode(parameterStatus *parameterStatus, x interface{}, pgtypOid oid.Oid) []byte {

Expected

It should be encoded to nil and store as NULL in the database