diff --git a/cmd/explaintest/r/explain_generate_column_substitute.result b/cmd/explaintest/r/explain_generate_column_substitute.result
index a2f3059c06625..5efbd22acfbbd 100644
--- a/cmd/explaintest/r/explain_generate_column_substitute.result
+++ b/cmd/explaintest/r/explain_generate_column_substitute.result
@@ -456,3 +456,33 @@ HashAgg	6.00	root		group by:Column#9, funcs:max(Column#8)->Column#7
 └─Projection	6.00	root		upper(test.t.b)->Column#8, upper(test.t.b)->Column#9
   └─TableReader	6.00	root		data:TableFullScan
     └─TableFullScan	6.00	cop[tikv]	table:t	keep order:false
+drop table if exists t;
+CREATE TABLE t (
+`a` date DEFAULT NULL,
+`b` datetime DEFAULT NULL,
+`c` time DEFAULT NULL,
+`d` timestamp NULL DEFAULT NULL,
+`e` year(4) DEFAULT NULL,
+KEY `expression_index` ((adddate(`a`, interval 10 microsecond))),
+KEY `expression_index2` ((timediff(`b`, '2021-03-30 08:10:00.000001'))),
+KEY `expression_index3` ((`d`+ timestamp'0000-00-00 00:00:00.00001'))
+);
+insert into t values ('2021-01-02', '2021-03-30 08:10:00', '12:01:03', '2021-08-13 04:10:44', 2021);
+select * from t use index(expression_index) where ADDDATE(a, interval 10 MICROSECOND) = ADDDATE('2021-01-02', interval 10 MICROSECOND);
+a	b	c	d	e
+2021-01-02	2021-03-30 08:10:00	12:01:03	2021-08-13 04:10:44	2021
+select * from t ignore index(expression_index) where ADDDATE(a, interval 10 MICROSECOND) = ADDDATE('2021-01-02', interval 10 MICROSECOND);
+a	b	c	d	e
+2021-01-02	2021-03-30 08:10:00	12:01:03	2021-08-13 04:10:44	2021
+select * from t use index(expression_index2) where timediff(`b`, '2021-03-30 08:10:00.000001') = timediff('2021-03-30 08:10:00', '2021-03-30 08:10:00.000001');
+a	b	c	d	e
+2021-01-02	2021-03-30 08:10:00	12:01:03	2021-08-13 04:10:44	2021
+select * from t ignore index(expression_index2) where timediff(`b`, '2021-03-30 08:10:00.000001') = timediff('2021-03-30 08:10:00', '2021-03-30 08:10:00.000001');
+a	b	c	d	e
+2021-01-02	2021-03-30 08:10:00	12:01:03	2021-08-13 04:10:44	2021
+select * from t use index(expression_index3) where d+ timestamp'0000-00-00 00:00:00.00001' = timestamp'2021-08-13 04:10:44'+ timestamp'0000-00-00 00:00:00.00001';
+a	b	c	d	e
+2021-01-02	2021-03-30 08:10:00	12:01:03	2021-08-13 04:10:44	2021
+select * from t ignore index(expression_index3) where d+ timestamp'0000-00-00 00:00:00.00001' = timestamp'2021-08-13 04:10:44'+ timestamp'0000-00-00 00:00:00.00001';
+a	b	c	d	e
+2021-01-02	2021-03-30 08:10:00	12:01:03	2021-08-13 04:10:44	2021
diff --git a/cmd/explaintest/t/explain_generate_column_substitute.test b/cmd/explaintest/t/explain_generate_column_substitute.test
index 1ebb37a1dd2df..eb83f8a5a1bf7 100644
--- a/cmd/explaintest/t/explain_generate_column_substitute.test
+++ b/cmd/explaintest/t/explain_generate_column_substitute.test
@@ -192,3 +192,23 @@ desc format = 'brief' select count(upper(b)) from t group by upper(b);
 desc format = 'brief' select max(upper(b)) from t group by upper(b);
 desc format = 'brief' select count(upper(b)) from t use index() group by upper(b);
 desc format = 'brief' select max(upper(b)) from t use index() group by upper(b);
+
+drop table if exists t;
+CREATE TABLE t (
+  `a` date DEFAULT NULL,
+  `b` datetime DEFAULT NULL,
+  `c` time DEFAULT NULL,
+  `d` timestamp NULL DEFAULT NULL,
+  `e` year(4) DEFAULT NULL,
+  KEY `expression_index` ((adddate(`a`, interval 10 microsecond))),
+  KEY `expression_index2` ((timediff(`b`, '2021-03-30 08:10:00.000001'))),
+  KEY `expression_index3` ((`d`+ timestamp'0000-00-00 00:00:00.00001'))
+);
+
+insert into t values ('2021-01-02', '2021-03-30 08:10:00', '12:01:03', '2021-08-13 04:10:44', 2021);
+select * from t use index(expression_index) where ADDDATE(a, interval 10 MICROSECOND) = ADDDATE('2021-01-02', interval 10 MICROSECOND);
+select * from t ignore index(expression_index) where ADDDATE(a, interval 10 MICROSECOND) = ADDDATE('2021-01-02', interval 10 MICROSECOND);
+select * from t use index(expression_index2) where timediff(`b`, '2021-03-30 08:10:00.000001') = timediff('2021-03-30 08:10:00', '2021-03-30 08:10:00.000001');
+select * from t ignore index(expression_index2) where timediff(`b`, '2021-03-30 08:10:00.000001') = timediff('2021-03-30 08:10:00', '2021-03-30 08:10:00.000001');
+select * from t use index(expression_index3) where d+ timestamp'0000-00-00 00:00:00.00001' = timestamp'2021-08-13 04:10:44'+ timestamp'0000-00-00 00:00:00.00001';
+select * from t ignore index(expression_index3) where d+ timestamp'0000-00-00 00:00:00.00001' = timestamp'2021-08-13 04:10:44'+ timestamp'0000-00-00 00:00:00.00001';
diff --git a/ddl/ddl_api.go b/ddl/ddl_api.go
index a735720242c51..036ca26925c21 100644
--- a/ddl/ddl_api.go
+++ b/ddl/ddl_api.go
@@ -5110,6 +5110,11 @@ func buildHiddenColumnInfo(ctx sessionctx.Context, indexPartSpecifications []*as
 			Hidden:              true,
 			FieldType:           *expr.GetType(),
 		}
+		if colInfo.Tp == mysql.TypeDatetime || colInfo.Tp == mysql.TypeDate || colInfo.Tp == mysql.TypeTimestamp || colInfo.Tp == mysql.TypeDuration {
+			if colInfo.FieldType.Decimal == types.UnspecifiedLength {
+				colInfo.FieldType.Decimal = int(types.MaxFsp)
+			}
+		}
 		checkDependencies := make(map[string]struct{})
 		for _, colName := range findColumnNamesInExpr(idxPart.Expr) {
 			colInfo.Dependences[colName.Name.L] = struct{}{}