error test

Author: James Cor

enginetest/queries/script_queries.go

@@ -7493,6 +7493,11 @@ where
 					{3, "c", float64(4)},
 				},
 			},
+			{
+				// TODO: MySQL preserves the original enum val and enum string, and throws a warning.
+				Query: "alter table t modify column e enum('abc');",
+				ExpectedErrStr: "value 2 is not valid for this Enum",
+			},
 		},
 	},
 }