diff --git a/go-tipb/select.pb.go b/go-tipb/select.pb.go
index 55617e5b..006fad9f 100644
--- a/go-tipb/select.pb.go
+++ b/go-tipb/select.pb.go
@@ -324,8 +324,10 @@ type DAGRequest struct {
 	// Represents tree struct based executors, if this field is set, should ignore the executors field, currently only used in TiFlash
 	RootExecutor *Executor `protobuf:"bytes,17,opt,name=root_executor,json=rootExecutor" json:"root_executor,omitempty"`
 	// Force using the encode type specified by encode_type, currently only used in TiFlash
-	ForceEncodeType  *bool  `protobuf:"varint,18,opt,name=force_encode_type,json=forceEncodeType" json:"force_encode_type,omitempty"`
-	XXX_unrecognized []byte `json:"-"`
+	ForceEncodeType *bool `protobuf:"varint,18,opt,name=force_encode_type,json=forceEncodeType" json:"force_encode_type,omitempty"`
+	// It indicates the number of digits by which to increase the scale of the result of division operations performed with the / operator.
+	DivPrecisionIncrement *uint32 `protobuf:"varint,19,opt,name=div_precision_increment,json=divPrecisionIncrement" json:"div_precision_increment,omitempty"`
+	XXX_unrecognized      []byte  `json:"-"`
 }
 
 func (m *DAGRequest) Reset()                    { *m = DAGRequest{} }
@@ -452,6 +454,13 @@ func (m *DAGRequest) GetForceEncodeType() bool {
 	return false
 }
 
+func (m *DAGRequest) GetDivPrecisionIncrement() uint32 {
+	if m != nil && m.DivPrecisionIncrement != nil {
+		return *m.DivPrecisionIncrement
+	}
+	return 0
+}
+
 type ChunkMemoryLayout struct {
 	// Represents the endian.
 	Endian           Endian `protobuf:"varint,1,opt,name=endian,enum=tipb.Endian" json:"endian"`
@@ -933,6 +942,13 @@ func (m *DAGRequest) MarshalTo(dAtA []byte) (int, error) {
 		}
 		i++
 	}
+	if m.DivPrecisionIncrement != nil {
+		dAtA[i] = 0x98
+		i++
+		dAtA[i] = 0x1
+		i++
+		i = encodeVarintSelect(dAtA, i, uint64(*m.DivPrecisionIncrement))
+	}
 	if m.XXX_unrecognized != nil {
 		i += copy(dAtA[i:], m.XXX_unrecognized)
 	}
@@ -1234,6 +1250,9 @@ func (m *DAGRequest) Size() (n int) {
 	if m.ForceEncodeType != nil {
 		n += 3
 	}
+	if m.DivPrecisionIncrement != nil {
+		n += 2 + sovSelect(uint64(*m.DivPrecisionIncrement))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -2565,6 +2584,26 @@ func (m *DAGRequest) Unmarshal(dAtA []byte) error {
 			}
 			b := bool(v != 0)
 			m.ForceEncodeType = &b
+		case 19:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field DivPrecisionIncrement", wireType)
+			}
+			var v uint32
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowSelect
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= (uint32(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.DivPrecisionIncrement = &v
 		default:
 			iNdEx = preIndex
 			skippy, err := skipSelect(dAtA[iNdEx:])
@@ -3163,69 +3202,72 @@ var (
 func init() { proto.RegisterFile("select.proto", fileDescriptorSelect) }
 
 var fileDescriptorSelect = []byte{
-	// 1022 bytes of a gzipped FileDescriptorProto
+	// 1057 bytes of a gzipped FileDescriptorProto
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+	0x76, 0x9f, 0x3e, 0xf3, 0xd8, 0x69, 0xc6, 0xa4, 0x22, 0x7d, 0x58, 0x93, 0x8a, 0x0a, 0xe5, 0x2b,
+	0xe9, 0x8f, 0x69, 0x14, 0x1d, 0xd3, 0xe0, 0x04, 0xa3, 0x16, 0xbd, 0x55, 0x24, 0x8e, 0xe4, 0xd7,
+	0x16, 0x26, 0x8f, 0xa0, 0x9a, 0x3f, 0x9d, 0xdc, 0x73, 0xcd, 0xeb, 0x75, 0xf2, 0xae, 0x04, 0x64,
+	0x00, 0x2d, 0x15, 0xc6, 0xcc, 0xff, 0x91, 0x27, 0xcc, 0xe7, 0xe3, 0xb1, 0x64, 0x0a, 0xd3, 0x97,
+	0x1f, 0xa8, 0xa9, 0xd9, 0x1f, 0x78, 0xc2, 0x5e, 0x21, 0x47, 0x36, 0xa0, 0x34, 0x8e, 0x28, 0xfa,
+	0xcf, 0xe9, 0x15, 0xad, 0xc8, 0x40, 0xe4, 0x43, 0x68, 0x5a, 0xd7, 0x99, 0x40, 0xc6, 0x76, 0x0d,
+	0xcf, 0x7a, 0xd1, 0x44, 0x90, 0xe4, 0x31, 0xdc, 0x0a, 0x78, 0xa4, 0x5f, 0x91, 0x2f, 0x68, 0x32,
+	0x61, 0xb9, 0x47, 0xb5, 0xfd, 0x2a, 0x1e, 0xb1, 0x9c, 0xa7, 0x29, 0xeb, 0xd4, 0x3e, 0xac, 0xc5,
+	0x74, 0xe6, 0x5f, 0x77, 0xeb, 0x8a, 0xb9, 0x7e, 0x4c, 0x67, 0xdf, 0x2f, 0x1a, 0xf6, 0x86, 0xbf,
+	0x2a, 0xff, 0xda, 0x5f, 0xf7, 0xa0, 0x22, 0x4f, 0x23, 0x3f, 0xd6, 0x2d, 0xa1, 0x8a, 0xb1, 0x57,
+	0xe4, 0x69, 0xb4, 0xaf, 0xfb, 0x41, 0x1f, 0x9a, 0x57, 0x49, 0x4a, 0x68, 0xcc, 0xdc, 0xda, 0x42,
+	0x6b, 0xa8, 0xe7, 0x29, 0xfa, 0x96, 0xc6, 0x8c, 0x7c, 0x09, 0xef, 0xe5, 0xb7, 0xfb, 0xa7, 0x87,
+	0x53, 0xc7, 0x4b, 0xde, 0xb3, 0x92, 0xbd, 0xb7, 0xdf, 0xc7, 0x23, 0x20, 0xfa, 0xae, 0x34, 0x8a,
+	0xf8, 0x39, 0x1b, 0xf9, 0x29, 0x0d, 0x4e, 0x98, 0x72, 0x1b, 0x78, 0xa0, 0x56, 0x4c, 0x67, 0x4f,
+	0x0d, 0x71, 0x80, 0x38, 0x79, 0x06, 0xeb, 0xd8, 0x1b, 0xfc, 0x98, 0xc5, 0x5c, 0xcc, 0xfd, 0x88,
+	0xce, 0x79, 0xa6, 0xdc, 0x26, 0x36, 0xa3, 0xbb, 0x0b, 0x9d, 0x64, 0x1f, 0xf9, 0x97, 0x48, 0x7b,
+	0x6b, 0xc1, 0x4d, 0x88, 0xb4, 0xa1, 0x16, 0x4a, 0x5f, 0xa4, 0x89, 0xcf, 0x66, 0xa9, 0x70, 0x57,
+	0xf1, 0x98, 0xd5, 0x50, 0x7a, 0x69, 0xb2, 0x37, 0x4b, 0x05, 0xf9, 0x08, 0x8a, 0x99, 0x64, 0xc2,
+	0x6d, 0x61, 0x64, 0x62, 0x22, 0x7f, 0x27, 0x99, 0x78, 0x31, 0x62, 0x89, 0x0a, 0xd5, 0xdc, 0x43,
+	0x9e, 0x7c, 0x0a, 0x0d, 0xc1, 0x79, 0x7e, 0x77, 0x2e, 0xdc, 0x35, 0x5c, 0x70, 0xd3, 0x81, 0x75,
+	0x2d, 0xca, 0x67, 0xba, 0xbe, 0x63, 0x2e, 0x02, 0xe6, 0x2f, 0x56, 0x8e, 0xe0, 0x11, 0x56, 0x91,
+	0xb8, 0x2a, 0x1c, 0xf9, 0x0c, 0xee, 0x8e, 0xc2, 0x33, 0x3f, 0x15, 0x2c, 0x08, 0xa5, 0xce, 0x6d,
+	0x98, 0x04, 0x82, 0xc5, 0x2c, 0x51, 0xee, 0x7a, 0xc7, 0xe9, 0x35, 0xbc, 0xdb, 0xa3, 0xf0, 0xec,
+	0x20, 0x67, 0x5f, 0xe4, 0x64, 0xf7, 0x2b, 0x58, 0x7b, 0x2b, 0x11, 0xa4, 0x0f, 0x65, 0x96, 0x8c,
+	0x42, 0x9a, 0xe0, 0x63, 0x6a, 0x6e, 0xd7, 0x73, 0x9f, 0x68, 0x2c, 0x7f, 0x92, 0x46, 0xd1, 0x3d,
+	0x82, 0xfa, 0xe2, 0x7d, 0xc9, 0x43, 0xa8, 0xea, 0x1b, 0x1b, 0x3f, 0x38, 0x0b, 0x7e, 0xa8, 0x68,
+	0x18, 0xbd, 0x90, 0x4b, 0xa6, 0x5c, 0xaa, 0x6b, 0x7f, 0x13, 0x94, 0x3c, 0xe7, 0x52, 0x75, 0x7f,
+	0x5a, 0x86, 0xe6, 0xa1, 0x12, 0x8c, 0xc6, 0xff, 0xe5, 0x97, 0xf2, 0x8d, 0xfd, 0xaf, 0xfd, 0xcf,
+	0x46, 0x87, 0x41, 0xde, 0xc5, 0x5f, 0x25, 0xef, 0xe5, 0x2b, 0x57, 0xbd, 0xbc, 0xff, 0x05, 0xc0,
+	0x42, 0x99, 0x57, 0xa1, 0xa6, 0xbf, 0xbb, 0x6c, 0x4c, 0xb3, 0x48, 0xb5, 0x96, 0x48, 0x03, 0xaa,
+	0x1a, 0xc0, 0x1a, 0xb6, 0x9c, 0x9c, 0xdf, 0x79, 0x3e, 0x8c, 0x78, 0x70, 0xd2, 0x5a, 0xee, 0x6f,
+	0x42, 0xd9, 0x94, 0x8d, 0xb4, 0xa0, 0xfe, 0x32, 0x54, 0x2a, 0x62, 0x66, 0x6e, 0xd6, 0x0e, 0xc3,
+	0x89, 0x9d, 0x3a, 0xc3, 0xcd, 0xd7, 0x17, 0x6d, 0xe7, 0xf7, 0x8b, 0xb6, 0xf3, 0xe7, 0x45, 0xdb,
+	0xf9, 0xf5, 0xaf, 0xf6, 0x12, 0xdc, 0x0e, 0x78, 0x3c, 0xb0, 0x29, 0x1b, 0xa8, 0x70, 0x74, 0x8c,
+	0x09, 0x38, 0x70, 0xfe, 0x0e, 0x00, 0x00, 0xff, 0xff, 0x7b, 0xac, 0x6a, 0x1b, 0x9a, 0x08, 0x00,
+	0x00,
 }
diff --git a/proto/select.proto b/proto/select.proto
index 05aa4797..46ef6cc3 100644
--- a/proto/select.proto
+++ b/proto/select.proto
@@ -130,6 +130,9 @@ message DAGRequest {
 
         // Force using the encode type specified by encode_type, currently only used in TiFlash
 	optional bool force_encode_type = 18;
+
+	// It indicates the number of digits by which to increase the scale of the result of division operations performed with the / operator.
+	optional uint32 div_precision_increment = 19;
 }
 
 enum EncodeType {