Add support to retrieve Rows from statement

Rows statement method executes statements over db connection/transaction and returns Rows.

tests/mysql/raw_statement_test.go

@@ -1,7 +1,9 @@
 package mysql
 
 import (
+	"context"
 	"testing"
+	"time"
 
 	"github.com/stretchr/testify/require"
 
@@ -80,3 +82,42 @@ func TestRawStatementSelectWithArguments(t *testing.T) {
 		LastUpdate: *testutils.TimestampWithoutTimeZone("2006-02-15 04:34:33", 2),
 	})
 }
+
+func TestRawStatementRows(t *testing.T) {
+	stmt := RawStatement(`
+		SELECT actor.actor_id AS "actor.actor_id",
+			 actor.first_name AS "actor.first_name",
+			 actor.last_name AS "actor.last_name",
+			 actor.last_update AS "actor.last_update"
+		FROM dvds.actor
+		ORDER BY actor.actor_id`)
+
+	rows, err := stmt.Rows(context.Background(), db)
+	require.NoError(t, err)
+
+	for rows.Next() {
+		var actor model.Actor
+		err := rows.Scan(&actor)
+		require.NoError(t, err)
+
+		require.NotEqual(t, actor.ActorID, int16(0))
+		require.NotEqual(t, actor.FirstName, "")
+		require.NotEqual(t, actor.LastName, "")
+		require.NotEqual(t, actor.LastUpdate, time.Time{})
+
+		if actor.ActorID == 54 {
+			require.Equal(t, actor.ActorID, uint16(54))
+			require.Equal(t, actor.FirstName, "PENELOPE")
+			require.Equal(t, actor.LastName, "PINKETT")
+			require.Equal(t, actor.LastUpdate.Format(time.RFC3339), "2006-02-15T04:34:33Z")
+		}
+	}
+
+	err = rows.Close()
+	require.NoError(t, err)
+
+	err = rows.Err()
+	require.NoError(t, err)
+
+	requireLogged(t, stmt)
+}