const github.com/jackc/pgtype.PolygonOID

2 uses

	github.com/jackc/pgtype (current package)
		pgtype.go#L33: 	PolygonOID          = 604
		pgtype.go#L305: 	ci.RegisterDataType(DataType{Value: &Polygon{}, Name: "polygon", OID: PolygonOID})