Add driver.RowsColumnTypeDatabaseTypeName support to stdlib.Rows

stdlib/sql.go

@@ -71,6 +71,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"strings"
 	"sync"
 
 	"github.com/jackc/pgx"
@@ -405,6 +406,10 @@ func (r *Rows) Columns() []string {
 	return names
 }
 
+func (r *Rows) ColumnTypeDatabaseTypeName(index int) string {
+	return strings.ToUpper(r.rows.FieldDescriptions()[index].DataTypeName)
+}
+
 func (r *Rows) Close() error {
 	r.rows.Close()
 	return nil