diff --git a/stdlib/sql.go b/stdlib/sql.go
index 8ff3fd49..db8eefc0 100644
--- a/stdlib/sql.go
+++ b/stdlib/sql.go
@@ -349,11 +349,14 @@ func (s *Stmt) QueryContext(ctx context.Context, argsV []driver.NamedValue) (dri
 }
 
 type Rows struct {
-	conn         *Conn
-	rows         pgx.Rows
-	values       []interface{}
-	skipNext     bool
-	skipNextMore bool
+	conn           *Conn
+	rows           pgx.Rows
+	values         []interface{}
+	driverValuers  []driver.Valuer
+	textDecoders   []pgtype.TextDecoder
+	binaryDecoders []pgtype.BinaryDecoder
+	skipNext       bool
+	skipNextMore   bool
 }
 
 func (r *Rows) Columns() []string {
@@ -444,42 +447,112 @@ func (r *Rows) Close() error {
 }
 
 func (r *Rows) Next(dest []driver.Value) error {
+	ci := r.conn.conn.ConnInfo()
+	fieldDescriptions := r.rows.FieldDescriptions()
+
 	if r.values == nil {
-		r.values = make([]interface{}, len(r.rows.FieldDescriptions()))
-		for i, fd := range r.rows.FieldDescriptions() {
+		r.values = make([]interface{}, len(fieldDescriptions))
+		r.driverValuers = make([]driver.Valuer, len(fieldDescriptions))
+		r.textDecoders = make([]pgtype.TextDecoder, len(fieldDescriptions))
+		r.binaryDecoders = make([]pgtype.BinaryDecoder, len(fieldDescriptions))
+
+		for i, fd := range fieldDescriptions {
 			switch fd.DataTypeOID {
 			case pgtype.BoolOID:
-				r.values[i] = &pgtype.Bool{}
+				v := &pgtype.Bool{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.ByteaOID:
-				r.values[i] = &pgtype.Bytea{}
+				v := &pgtype.Bytea{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.CIDOID:
-				r.values[i] = &pgtype.CID{}
+				v := &pgtype.CID{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.DateOID:
-				r.values[i] = &pgtype.Date{}
+				v := &pgtype.Date{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.Float4OID:
-				r.values[i] = &pgtype.Float4{}
+				v := &pgtype.Float4{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.Float8OID:
-				r.values[i] = &pgtype.Float8{}
+				v := &pgtype.Float8{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.Int2OID:
-				r.values[i] = &pgtype.Int2{}
+				v := &pgtype.Int2{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.Int4OID:
-				r.values[i] = &pgtype.Int4{}
+				v := &pgtype.Int4{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.Int8OID:
-				r.values[i] = &pgtype.Int8{}
+				v := &pgtype.Int8{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.JSONOID:
-				r.values[i] = &pgtype.JSON{}
+				v := &pgtype.JSON{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.JSONBOID:
-				r.values[i] = &pgtype.JSONB{}
+				v := &pgtype.JSONB{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.OIDOID:
-				r.values[i] = &pgtype.OIDValue{}
+				v := &pgtype.OIDValue{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.TimestampOID:
-				r.values[i] = &pgtype.Timestamp{}
+				v := &pgtype.Timestamp{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.TimestamptzOID:
-				r.values[i] = &pgtype.Timestamptz{}
+				v := &pgtype.Timestamptz{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			case pgtype.XIDOID:
-				r.values[i] = &pgtype.XID{}
+				v := &pgtype.XID{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
+				r.binaryDecoders[i] = v
 			default:
-				r.values[i] = &pgtype.GenericText{}
+				v := &pgtype.GenericText{}
+				r.values[i] = v
+				r.driverValuers[i] = v
+				r.textDecoders[i] = v
 			}
 		}
 	}
@@ -500,15 +573,24 @@ func (r *Rows) Next(dest []driver.Value) error {
 		}
 	}
 
-	err := r.rows.Scan(r.values...)
-	if err != nil {
-		return err
-	}
+	for i, rv := range r.rows.RawValues() {
+		fd := fieldDescriptions[i]
+		if fd.Format == pgx.BinaryFormatCode {
+			err := r.binaryDecoders[i].DecodeBinary(ci, rv)
+			if err != nil {
+				return fmt.Errorf("scan field %d failed: %v", i, err)
+			}
+		} else {
+			err := r.textDecoders[i].DecodeText(ci, rv)
+			if err != nil {
+				return fmt.Errorf("scan field %d failed: %v", i, err)
+			}
+		}
 
-	for i, v := range r.values {
-		dest[i], err = v.(driver.Valuer).Value()
+		var err error
+		dest[i], err = r.driverValuers[i].Value()
 		if err != nil {
-			return err
+			return fmt.Errorf("convert field %d failed: %v", i, err)
 		}
 	}