Add a test with an alias to a projected tuple

Signed-off-by: Juanjo Alvarez <[email protected]>

Author: Juanjo Alvarez

sql/analyzer/validation_rules_test.go

@@ -251,6 +251,22 @@ func TestValidateProjectTuples(t *testing.T) {
 				}, nil)),
 			false,
 		},
+		{
+			"alias with a tuple",
+			plan.NewProject(
+				[]sql.Expression{
+					expression.NewAlias(
+						expression.NewTuple(
+							expression.NewLiteral(1, sql.Int64),
+							expression.NewLiteral(2, sql.Int64),
+						),
+						"foo",
+					),
+				},
+				plan.NewUnresolvedTable("dual", ""),
+			),
+			false,
+		},
 		{
 			"groupby with no tuple",
 			plan.NewGroupBy([]sql.Expression{