diff --git a/go-api/milvuspb/milvus.pb.go b/go-api/milvuspb/milvus.pb.go
index f9864e0..16e3941 100644
--- a/go-api/milvuspb/milvus.pb.go
+++ b/go-api/milvuspb/milvus.pb.go
@@ -376,7 +376,6 @@ func (m *DescribeAliasRequest) GetAlias() string {
 	return ""
 }
 
-//
 // Describe alias response
 type DescribeAliasResponse struct {
 	// Response status
@@ -497,7 +496,6 @@ func (m *ListAliasesRequest) GetCollectionName() string {
 	return ""
 }
 
-//
 // List aliases response
 type ListAliasesResponse struct {
 	// Response status
@@ -563,7 +561,7 @@ func (m *ListAliasesResponse) GetAliases() []string {
 	return nil
 }
 
-//*
+// *
 // Create collection in milvus
 type CreateCollectionRequest struct {
 	// Not useful for now
@@ -659,7 +657,7 @@ func (m *CreateCollectionRequest) GetProperties() []*commonpb.KeyValuePair {
 	return nil
 }
 
-//*
+// *
 // Drop collection in milvus, also will drop data in collection.
 type DropCollectionRequest struct {
 	// Not useful for now
@@ -719,7 +717,7 @@ func (m *DropCollectionRequest) GetCollectionName() string {
 	return ""
 }
 
-//*
+// *
 // Alter collection in milvus
 type AlterCollectionRequest struct {
 	// Not useful for now
@@ -795,7 +793,7 @@ func (m *AlterCollectionRequest) GetProperties() []*commonpb.KeyValuePair {
 	return nil
 }
 
-//*
+// *
 // Check collection exist in milvus or not.
 type HasCollectionRequest struct {
 	// Not useful for now
@@ -958,7 +956,7 @@ func (m *StringResponse) GetValue() string {
 	return ""
 }
 
-//*
+// *
 // Get collection meta datas like: schema, collectionID, shards number ...
 type DescribeCollectionRequest struct {
 	// Not useful for now
@@ -1036,7 +1034,7 @@ func (m *DescribeCollectionRequest) GetTimeStamp() uint64 {
 	return 0
 }
 
-//*
+// *
 // DescribeCollection Response
 type DescribeCollectionResponse struct {
 	// Contain error_code and reason
@@ -1185,7 +1183,7 @@ func (m *DescribeCollectionResponse) GetProperties() []*commonpb.KeyValuePair {
 	return nil
 }
 
-//*
+// *
 // Load collection data into query nodes, then you can do vector search on this collection.
 type LoadCollectionRequest struct {
 	// Not useful for now
@@ -1272,7 +1270,7 @@ func (m *LoadCollectionRequest) GetRefresh() bool {
 	return false
 }
 
-//*
+// *
 // Release collection data from query nodes, then you can't do vector search on this collection.
 type ReleaseCollectionRequest struct {
 	// Not useful for now
@@ -1332,7 +1330,7 @@ func (m *ReleaseCollectionRequest) GetCollectionName() string {
 	return ""
 }
 
-//*
+// *
 // Get statistics like row_count.
 // WARNING: This API is experimental and not useful for now.
 type GetStatisticsRequest struct {
@@ -1411,7 +1409,7 @@ func (m *GetStatisticsRequest) GetGuaranteeTimestamp() uint64 {
 	return 0
 }
 
-//*
+// *
 // Will return statistics in stats field like [{key:"row_count",value:"1"}]
 // WARNING: This API is experimental and not useful for now.
 type GetStatisticsResponse struct {
@@ -1463,7 +1461,7 @@ func (m *GetStatisticsResponse) GetStats() []*commonpb.KeyValuePair {
 	return nil
 }
 
-//*
+// *
 // Get collection statistics like row_count.
 type GetCollectionStatisticsRequest struct {
 	// Not useful for now
@@ -1523,7 +1521,7 @@ func (m *GetCollectionStatisticsRequest) GetCollectionName() string {
 	return ""
 }
 
-//*
+// *
 // Will return collection statistics in stats field like [{key:"row_count",value:"1"}]
 type GetCollectionStatisticsResponse struct {
 	// Contain error_code and reason
@@ -1574,7 +1572,6 @@ func (m *GetCollectionStatisticsResponse) GetStats() []*commonpb.KeyValuePair {
 	return nil
 }
 
-//
 // List collections
 type ShowCollectionsRequest struct {
 	// Not useful for now
@@ -1653,7 +1650,6 @@ func (m *ShowCollectionsRequest) GetCollectionNames() []string {
 	return nil
 }
 
-//
 // Return basic collection infos.
 type ShowCollectionsResponse struct {
 	// Contain error_code and reason
@@ -1750,7 +1746,6 @@ func (m *ShowCollectionsResponse) GetQueryServiceAvailable() []bool {
 	return nil
 }
 
-//
 // Create partition in created collection.
 type CreatePartitionRequest struct {
 	// Not useful for now
@@ -1819,7 +1814,6 @@ func (m *CreatePartitionRequest) GetPartitionName() string {
 	return ""
 }
 
-//
 // Drop partition in created collection.
 type DropPartitionRequest struct {
 	// Not useful for now
@@ -1888,7 +1882,6 @@ func (m *DropPartitionRequest) GetPartitionName() string {
 	return ""
 }
 
-//
 // Check if partition exist in collection or not.
 type HasPartitionRequest struct {
 	// Not useful for now
@@ -1957,7 +1950,6 @@ func (m *HasPartitionRequest) GetPartitionName() string {
 	return ""
 }
 
-//
 // Load specific partitions data of one collection into query nodes
 // Then you can get these data as result when you do vector search on this collection.
 type LoadPartitionsRequest struct {
@@ -2054,7 +2046,6 @@ func (m *LoadPartitionsRequest) GetRefresh() bool {
 	return false
 }
 
-//
 // Release specific partitions data of one collection from query nodes.
 // Then you can not get these data as result when you do vector search on this collection.
 type ReleasePartitionsRequest struct {
@@ -2124,7 +2115,6 @@ func (m *ReleasePartitionsRequest) GetPartitionNames() []string {
 	return nil
 }
 
-//
 // Get partition statistics like row_count.
 type GetPartitionStatisticsRequest struct {
 	// Not useful for now
@@ -2240,7 +2230,6 @@ func (m *GetPartitionStatisticsResponse) GetStats() []*commonpb.KeyValuePair {
 	return nil
 }
 
-//
 // List all partitions for particular collection
 type ShowPartitionsRequest struct {
 	// Not useful for now
@@ -2328,7 +2317,6 @@ func (m *ShowPartitionsRequest) GetType() ShowType {
 	return ShowType_All
 }
 
-//
 // List all partitions for particular collection response.
 // The returned datas are all rows, we can format to columns by therir index.
 type ShowPartitionsResponse struct {
@@ -2645,7 +2633,6 @@ func (m *ShowSegmentsResponse) GetSegmentIDs() []int64 {
 	return nil
 }
 
-//
 // Create index for vector datas
 type CreateIndexRequest struct {
 	// Not useful for now
@@ -2732,7 +2719,6 @@ func (m *CreateIndexRequest) GetIndexName() string {
 	return ""
 }
 
-//
 // Get created index information.
 // Current release of Milvus only supports showing latest built index.
 type DescribeIndexRequest struct {
@@ -2811,7 +2797,6 @@ func (m *DescribeIndexRequest) GetIndexName() string {
 	return ""
 }
 
-//
 // Index informations
 type IndexDescription struct {
 	// Index name
@@ -2914,7 +2899,6 @@ func (m *IndexDescription) GetIndexStateFailReason() string {
 	return ""
 }
 
-//
 // Describe index response
 type DescribeIndexResponse struct {
 	// Response status
@@ -2965,8 +2949,7 @@ func (m *DescribeIndexResponse) GetIndexDescriptions() []*IndexDescription {
 	return nil
 }
 
-//
-//  Get index building progress
+// Get index building progress
 type GetIndexBuildProgressRequest struct {
 	// Not useful for now
 	Base *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
@@ -4238,6 +4221,7 @@ func (m *VectorIDs) GetPartitionNames() []string {
 
 type VectorsArray struct {
 	// Types that are valid to be assigned to Array:
+	//
 	//	*VectorsArray_IdArray
 	//	*VectorsArray_DataArray
 	Array                isVectorsArray_Array `protobuf_oneof:"array"`
@@ -4384,6 +4368,7 @@ type CalcDistanceResults struct {
 	// num(op_left)*num(op_right) distance values, "HAMMIN" return integer distance
 	//
 	// Types that are valid to be assigned to Array:
+	//
 	//	*CalcDistanceResults_IntDist
 	//	*CalcDistanceResults_FloatDist
 	Array                isCalcDistanceResults_Array `protobuf_oneof:"array"`
@@ -5341,7 +5326,6 @@ func (m *GetComponentStatesRequest) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_GetComponentStatesRequest proto.InternalMessageInfo
 
-//
 // Do load balancing operation from src_nodeID to dst_nodeID.
 type LoadBalanceRequest struct {
 	Base                 *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
diff --git a/go-api/schemapb/schema.pb.go b/go-api/schemapb/schema.pb.go
index c77c5f9..a1d88e7 100644
--- a/go-api/schemapb/schema.pb.go
+++ b/go-api/schemapb/schema.pb.go
@@ -21,7 +21,7 @@ var _ = math.Inf
 // proto package needs to be updated.
 const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
 
-//*
+// *
 // @brief Field data type
 type DataType int32
 
@@ -36,6 +36,8 @@ const (
 	DataType_Double       DataType = 11
 	DataType_String       DataType = 20
 	DataType_VarChar      DataType = 21
+	DataType_Array        DataType = 22
+	DataType_JSON         DataType = 23
 	DataType_BinaryVector DataType = 100
 	DataType_FloatVector  DataType = 101
 )
@@ -51,6 +53,8 @@ var DataType_name = map[int32]string{
 	11:  "Double",
 	20:  "String",
 	21:  "VarChar",
+	22:  "Array",
+	23:  "JSON",
 	100: "BinaryVector",
 	101: "FloatVector",
 }
@@ -66,6 +70,8 @@ var DataType_value = map[string]int32{
 	"Double":       11,
 	"String":       20,
 	"VarChar":      21,
+	"Array":        22,
+	"JSON":         23,
 	"BinaryVector": 100,
 	"FloatVector":  101,
 }
@@ -109,21 +115,23 @@ func (FieldState) EnumDescriptor() ([]byte, []int) {
 	return fileDescriptor_1c5fb4d8cc22d66a, []int{1}
 }
 
-//*
+// *
 // @brief Field schema
 type FieldSchema struct {
-	FieldID              int64                    `protobuf:"varint,1,opt,name=fieldID,proto3" json:"fieldID,omitempty"`
-	Name                 string                   `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
-	IsPrimaryKey         bool                     `protobuf:"varint,3,opt,name=is_primary_key,json=isPrimaryKey,proto3" json:"is_primary_key,omitempty"`
-	Description          string                   `protobuf:"bytes,4,opt,name=description,proto3" json:"description,omitempty"`
-	DataType             DataType                 `protobuf:"varint,5,opt,name=data_type,json=dataType,proto3,enum=milvus.proto.schema.DataType" json:"data_type,omitempty"`
-	TypeParams           []*commonpb.KeyValuePair `protobuf:"bytes,6,rep,name=type_params,json=typeParams,proto3" json:"type_params,omitempty"`
-	IndexParams          []*commonpb.KeyValuePair `protobuf:"bytes,7,rep,name=index_params,json=indexParams,proto3" json:"index_params,omitempty"`
-	AutoID               bool                     `protobuf:"varint,8,opt,name=autoID,proto3" json:"autoID,omitempty"`
-	State                FieldState               `protobuf:"varint,9,opt,name=state,proto3,enum=milvus.proto.schema.FieldState" json:"state,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}                 `json:"-"`
-	XXX_unrecognized     []byte                   `json:"-"`
-	XXX_sizecache        int32                    `json:"-"`
+	FieldID      int64                    `protobuf:"varint,1,opt,name=fieldID,proto3" json:"fieldID,omitempty"`
+	Name         string                   `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty"`
+	IsPrimaryKey bool                     `protobuf:"varint,3,opt,name=is_primary_key,json=isPrimaryKey,proto3" json:"is_primary_key,omitempty"`
+	Description  string                   `protobuf:"bytes,4,opt,name=description,proto3" json:"description,omitempty"`
+	DataType     DataType                 `protobuf:"varint,5,opt,name=data_type,json=dataType,proto3,enum=milvus.proto.schema.DataType" json:"data_type,omitempty"`
+	TypeParams   []*commonpb.KeyValuePair `protobuf:"bytes,6,rep,name=type_params,json=typeParams,proto3" json:"type_params,omitempty"`
+	IndexParams  []*commonpb.KeyValuePair `protobuf:"bytes,7,rep,name=index_params,json=indexParams,proto3" json:"index_params,omitempty"`
+	AutoID       bool                     `protobuf:"varint,8,opt,name=autoID,proto3" json:"autoID,omitempty"`
+	State        FieldState               `protobuf:"varint,9,opt,name=state,proto3,enum=milvus.proto.schema.FieldState" json:"state,omitempty"`
+	// state is `Created`.
+	ElementType          DataType `protobuf:"varint,10,opt,name=element_type,json=elementType,proto3,enum=milvus.proto.schema.DataType" json:"element_type,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
 }
 
 func (m *FieldSchema) Reset()         { *m = FieldSchema{} }
@@ -214,7 +222,14 @@ func (m *FieldSchema) GetState() FieldState {
 	return FieldState_FieldCreated
 }
 
-//*
+func (m *FieldSchema) GetElementType() DataType {
+	if m != nil {
+		return m.ElementType
+	}
+	return DataType_None
+}
+
+// *
 // @brief Collection schema
 type CollectionSchema struct {
 	Name                 string         `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
@@ -553,8 +568,87 @@ func (m *StringArray) GetData() []string {
 	return nil
 }
 
+type ArrayArray struct {
+	Data                 []*ScalarField `protobuf:"bytes,1,rep,name=data,proto3" json:"data,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}       `json:"-"`
+	XXX_unrecognized     []byte         `json:"-"`
+	XXX_sizecache        int32          `json:"-"`
+}
+
+func (m *ArrayArray) Reset()         { *m = ArrayArray{} }
+func (m *ArrayArray) String() string { return proto.CompactTextString(m) }
+func (*ArrayArray) ProtoMessage()    {}
+func (*ArrayArray) Descriptor() ([]byte, []int) {
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{9}
+}
+
+func (m *ArrayArray) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ArrayArray.Unmarshal(m, b)
+}
+func (m *ArrayArray) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ArrayArray.Marshal(b, m, deterministic)
+}
+func (m *ArrayArray) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ArrayArray.Merge(m, src)
+}
+func (m *ArrayArray) XXX_Size() int {
+	return xxx_messageInfo_ArrayArray.Size(m)
+}
+func (m *ArrayArray) XXX_DiscardUnknown() {
+	xxx_messageInfo_ArrayArray.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ArrayArray proto.InternalMessageInfo
+
+func (m *ArrayArray) GetData() []*ScalarField {
+	if m != nil {
+		return m.Data
+	}
+	return nil
+}
+
+type JSONArray struct {
+	Data                 [][]byte `protobuf:"bytes,1,rep,name=data,proto3" json:"data,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *JSONArray) Reset()         { *m = JSONArray{} }
+func (m *JSONArray) String() string { return proto.CompactTextString(m) }
+func (*JSONArray) ProtoMessage()    {}
+func (*JSONArray) Descriptor() ([]byte, []int) {
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{10}
+}
+
+func (m *JSONArray) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_JSONArray.Unmarshal(m, b)
+}
+func (m *JSONArray) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_JSONArray.Marshal(b, m, deterministic)
+}
+func (m *JSONArray) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_JSONArray.Merge(m, src)
+}
+func (m *JSONArray) XXX_Size() int {
+	return xxx_messageInfo_JSONArray.Size(m)
+}
+func (m *JSONArray) XXX_DiscardUnknown() {
+	xxx_messageInfo_JSONArray.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_JSONArray proto.InternalMessageInfo
+
+func (m *JSONArray) GetData() [][]byte {
+	if m != nil {
+		return m.Data
+	}
+	return nil
+}
+
 type ScalarField struct {
 	// Types that are valid to be assigned to Data:
+	//
 	//	*ScalarField_BoolData
 	//	*ScalarField_IntData
 	//	*ScalarField_LongData
@@ -562,6 +656,8 @@ type ScalarField struct {
 	//	*ScalarField_DoubleData
 	//	*ScalarField_StringData
 	//	*ScalarField_BytesData
+	//	*ScalarField_ArrayData
+	//	*ScalarField_JsonData
 	Data                 isScalarField_Data `protobuf_oneof:"data"`
 	XXX_NoUnkeyedLiteral struct{}           `json:"-"`
 	XXX_unrecognized     []byte             `json:"-"`
@@ -572,7 +668,7 @@ func (m *ScalarField) Reset()         { *m = ScalarField{} }
 func (m *ScalarField) String() string { return proto.CompactTextString(m) }
 func (*ScalarField) ProtoMessage()    {}
 func (*ScalarField) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1c5fb4d8cc22d66a, []int{9}
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{11}
 }
 
 func (m *ScalarField) XXX_Unmarshal(b []byte) error {
@@ -625,6 +721,14 @@ type ScalarField_BytesData struct {
 	BytesData *BytesArray `protobuf:"bytes,7,opt,name=bytes_data,json=bytesData,proto3,oneof"`
 }
 
+type ScalarField_ArrayData struct {
+	ArrayData *ArrayArray `protobuf:"bytes,8,opt,name=array_data,json=arrayData,proto3,oneof"`
+}
+
+type ScalarField_JsonData struct {
+	JsonData *JSONArray `protobuf:"bytes,9,opt,name=json_data,json=jsonData,proto3,oneof"`
+}
+
 func (*ScalarField_BoolData) isScalarField_Data() {}
 
 func (*ScalarField_IntData) isScalarField_Data() {}
@@ -639,6 +743,10 @@ func (*ScalarField_StringData) isScalarField_Data() {}
 
 func (*ScalarField_BytesData) isScalarField_Data() {}
 
+func (*ScalarField_ArrayData) isScalarField_Data() {}
+
+func (*ScalarField_JsonData) isScalarField_Data() {}
+
 func (m *ScalarField) GetData() isScalarField_Data {
 	if m != nil {
 		return m.Data
@@ -695,6 +803,20 @@ func (m *ScalarField) GetBytesData() *BytesArray {
 	return nil
 }
 
+func (m *ScalarField) GetArrayData() *ArrayArray {
+	if x, ok := m.GetData().(*ScalarField_ArrayData); ok {
+		return x.ArrayData
+	}
+	return nil
+}
+
+func (m *ScalarField) GetJsonData() *JSONArray {
+	if x, ok := m.GetData().(*ScalarField_JsonData); ok {
+		return x.JsonData
+	}
+	return nil
+}
+
 // XXX_OneofWrappers is for the internal use of the proto package.
 func (*ScalarField) XXX_OneofWrappers() []interface{} {
 	return []interface{}{
@@ -705,12 +827,15 @@ func (*ScalarField) XXX_OneofWrappers() []interface{} {
 		(*ScalarField_DoubleData)(nil),
 		(*ScalarField_StringData)(nil),
 		(*ScalarField_BytesData)(nil),
+		(*ScalarField_ArrayData)(nil),
+		(*ScalarField_JsonData)(nil),
 	}
 }
 
 type VectorField struct {
 	Dim int64 `protobuf:"varint,1,opt,name=dim,proto3" json:"dim,omitempty"`
 	// Types that are valid to be assigned to Data:
+	//
 	//	*VectorField_FloatVector
 	//	*VectorField_BinaryVector
 	Data                 isVectorField_Data `protobuf_oneof:"data"`
@@ -723,7 +848,7 @@ func (m *VectorField) Reset()         { *m = VectorField{} }
 func (m *VectorField) String() string { return proto.CompactTextString(m) }
 func (*VectorField) ProtoMessage()    {}
 func (*VectorField) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1c5fb4d8cc22d66a, []int{10}
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{12}
 }
 
 func (m *VectorField) XXX_Unmarshal(b []byte) error {
@@ -800,6 +925,7 @@ type FieldData struct {
 	Type      DataType `protobuf:"varint,1,opt,name=type,proto3,enum=milvus.proto.schema.DataType" json:"type,omitempty"`
 	FieldName string   `protobuf:"bytes,2,opt,name=field_name,json=fieldName,proto3" json:"field_name,omitempty"`
 	// Types that are valid to be assigned to Field:
+	//
 	//	*FieldData_Scalars
 	//	*FieldData_Vectors
 	Field                isFieldData_Field `protobuf_oneof:"field"`
@@ -813,7 +939,7 @@ func (m *FieldData) Reset()         { *m = FieldData{} }
 func (m *FieldData) String() string { return proto.CompactTextString(m) }
 func (*FieldData) ProtoMessage()    {}
 func (*FieldData) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1c5fb4d8cc22d66a, []int{11}
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{13}
 }
 
 func (m *FieldData) XXX_Unmarshal(b []byte) error {
@@ -902,6 +1028,7 @@ func (*FieldData) XXX_OneofWrappers() []interface{} {
 
 type IDs struct {
 	// Types that are valid to be assigned to IdField:
+	//
 	//	*IDs_IntId
 	//	*IDs_StrId
 	IdField              isIDs_IdField `protobuf_oneof:"id_field"`
@@ -914,7 +1041,7 @@ func (m *IDs) Reset()         { *m = IDs{} }
 func (m *IDs) String() string { return proto.CompactTextString(m) }
 func (*IDs) ProtoMessage()    {}
 func (*IDs) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1c5fb4d8cc22d66a, []int{12}
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{14}
 }
 
 func (m *IDs) XXX_Unmarshal(b []byte) error {
@@ -996,7 +1123,7 @@ func (m *SearchResultData) Reset()         { *m = SearchResultData{} }
 func (m *SearchResultData) String() string { return proto.CompactTextString(m) }
 func (*SearchResultData) ProtoMessage()    {}
 func (*SearchResultData) Descriptor() ([]byte, []int) {
-	return fileDescriptor_1c5fb4d8cc22d66a, []int{13}
+	return fileDescriptor_1c5fb4d8cc22d66a, []int{15}
 }
 
 func (m *SearchResultData) XXX_Unmarshal(b []byte) error {
@@ -1071,6 +1198,8 @@ func init() {
 	proto.RegisterType((*DoubleArray)(nil), "milvus.proto.schema.DoubleArray")
 	proto.RegisterType((*BytesArray)(nil), "milvus.proto.schema.BytesArray")
 	proto.RegisterType((*StringArray)(nil), "milvus.proto.schema.StringArray")
+	proto.RegisterType((*ArrayArray)(nil), "milvus.proto.schema.ArrayArray")
+	proto.RegisterType((*JSONArray)(nil), "milvus.proto.schema.JSONArray")
 	proto.RegisterType((*ScalarField)(nil), "milvus.proto.schema.ScalarField")
 	proto.RegisterType((*VectorField)(nil), "milvus.proto.schema.VectorField")
 	proto.RegisterType((*FieldData)(nil), "milvus.proto.schema.FieldData")
@@ -1081,72 +1210,77 @@ func init() {
 func init() { proto.RegisterFile("schema.proto", fileDescriptor_1c5fb4d8cc22d66a) }
 
 var fileDescriptor_1c5fb4d8cc22d66a = []byte{
-	// 1062 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x55, 0x5f, 0x6f, 0x1b, 0x45,
-	0x10, 0xf7, 0xf9, 0xfc, 0xe7, 0x6e, 0xce, 0x0d, 0xc7, 0xb6, 0xa0, 0x03, 0xa9, 0x8d, 0x6b, 0x81,
-	0x64, 0x45, 0x6a, 0xa2, 0xa4, 0x50, 0x4a, 0x45, 0x05, 0x38, 0x56, 0x88, 0x15, 0x28, 0xe1, 0x82,
-	0xf2, 0xc0, 0x8b, 0xb5, 0xf6, 0x6d, 0x92, 0x55, 0xce, 0xb7, 0xc7, 0xee, 0xba, 0xc2, 0x1f, 0x80,
-	0x6f, 0xc0, 0x03, 0x42, 0x3c, 0xf0, 0xcc, 0x77, 0xe2, 0x89, 0xcf, 0x81, 0x84, 0x76, 0x76, 0xfd,
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+	0x03, 0xe1, 0x29, 0xa3, 0xc5, 0xf8, 0x32, 0x66, 0x72, 0x9a, 0x9a, 0x41, 0xdc, 0x84, 0x20, 0x9b,
+	0x4e, 0x86, 0x3f, 0x4c, 0x59, 0xc1, 0x99, 0xb4, 0xbd, 0x02, 0xd9, 0x74, 0xf2, 0x8d, 0xf1, 0x90,
+	0xbb, 0x50, 0x57, 0x22, 0x1f, 0x5e, 0xe9, 0xbd, 0xdd, 0xb8, 0xa6, 0x44, 0x7e, 0x44, 0x3e, 0x83,
+	0xc0, 0xbc, 0x12, 0xe5, 0x0d, 0xe2, 0xde, 0x98, 0xcf, 0x5c, 0xf9, 0xd8, 0x88, 0x68, 0x66, 0xe6,
+	0x3e, 0x34, 0xe4, 0x58, 0x14, 0xcc, 0x3c, 0x4b, 0xd5, 0xd8, 0xae, 0xc8, 0x16, 0xb8, 0x3c, 0x91,
+	0xf6, 0x3e, 0x88, 0x56, 0xdf, 0x67, 0x7d, 0x19, 0x63, 0x10, 0xb9, 0xa7, 0x4f, 0x76, 0x65, 0x7e,
+	0x29, 0xdc, 0xd8, 0x2c, 0xb6, 0x7e, 0x77, 0xc0, 0x2b, 0xfb, 0x87, 0x78, 0x50, 0x3b, 0x16, 0x19,
+	0x0b, 0x2b, 0x68, 0xe1, 0x35, 0x1a, 0x3a, 0x68, 0x0d, 0x32, 0xf5, 0x3c, 0xac, 0x12, 0x1f, 0xea,
+	0x83, 0x4c, 0xed, 0x3e, 0x0b, 0x5d, 0x6b, 0x3e, 0xd9, 0x0b, 0x6b, 0xd6, 0x7c, 0xf6, 0x34, 0xac,
+	0xa3, 0xa9, 0xa7, 0x20, 0x04, 0x02, 0xd0, 0x30, 0x17, 0x51, 0x18, 0xa0, 0x6d, 0x8a, 0x1d, 0xde,
+	0x23, 0x01, 0x34, 0xcf, 0x68, 0xb1, 0x7f, 0x49, 0x8b, 0xf0, 0x1d, 0x8c, 0xd7, 0xf5, 0x0f, 0xef,
+	0xe3, 0x2e, 0x38, 0xac, 0xe1, 0xbb, 0x24, 0x84, 0x56, 0x6f, 0x69, 0x2c, 0xc2, 0x84, 0xfc, 0x0f,
+	0x82, 0x83, 0xc5, 0x38, 0x85, 0x6c, 0xeb, 0x0c, 0x60, 0xf1, 0x7b, 0x81, 0x00, 0xbd, 0xda, 0x2f,
+	0x18, 0x55, 0x2c, 0x09, 0x2b, 0xe4, 0xff, 0x70, 0x67, 0xe1, 0xc1, 0x7d, 0x9d, 0xb9, 0xab, 0x5f,
+	0x88, 0x3c, 0x47, 0x57, 0x75, 0x8e, 0xd3, 0x2e, 0x96, 0x84, 0x6e, 0xef, 0x1c, 0x36, 0xb8, 0x28,
+	0x8b, 0x78, 0x51, 0xe4, 0xe3, 0x5e, 0x60, 0x1e, 0xf9, 0x13, 0x2c, 0xe8, 0x89, 0xf3, 0xdd, 0xee,
+	0x05, 0x57, 0x97, 0xd3, 0x11, 0xfe, 0x3a, 0xed, 0x98, 0xb0, 0xc7, 0x5c, 0x94, 0x96, 0xae, 0xfa,
+	0xce, 0x85, 0x78, 0x4c, 0x73, 0xbe, 0x63, 0x8a, 0x9f, 0x8f, 0x7e, 0x75, 0x9c, 0xdf, 0xaa, 0x1b,
+	0x83, 0xd7, 0xdb, 0x5f, 0x1b, 0xd6, 0x2f, 0x8a, 0x7c, 0x3c, 0x6a, 0xe8, 0xd0, 0x27, 0xff, 0x04,
+	0x00, 0x00, 0xff, 0xff, 0xe2, 0xde, 0x5b, 0xe5, 0xde, 0x0a, 0x00, 0x00,
 }
diff --git a/proto/schema.proto b/proto/schema.proto
index f553c69..589d1ba 100644
--- a/proto/schema.proto
+++ b/proto/schema.proto
@@ -28,6 +28,8 @@ enum DataType {
 
   String = 20;
   VarChar = 21; // variable-length strings with a specified maximum length
+  Array = 22;
+  JSON = 23;
 
   BinaryVector = 100;
   FloatVector = 101;
@@ -52,7 +54,9 @@ message FieldSchema {
   repeated common.KeyValuePair type_params = 6;
   repeated common.KeyValuePair index_params = 7;
   bool autoID = 8;
-  FieldState state = 9; // To keep compatible with older version, the default state is `Created`.
+  FieldState state = 9; // To keep compatible with older version, the default
+                        // state is `Created`.
+  DataType element_type = 10; // For array type, the element type is stored here
 }
 
 /**
@@ -65,34 +69,24 @@ message CollectionSchema {
   repeated FieldSchema fields = 4;
 }
 
-message BoolArray {
-  repeated bool data = 1;
-}
+message BoolArray { repeated bool data = 1; }
 
-message IntArray {
-  repeated int32 data = 1;
-}
+message IntArray { repeated int32 data = 1; }
 
-message LongArray {
-  repeated int64 data = 1;
-}
+message LongArray { repeated int64 data = 1; }
 
-message FloatArray {
-  repeated float data = 1;
-}
+message FloatArray { repeated float data = 1; }
 
-message DoubleArray {
-  repeated double data = 1;
-}
+message DoubleArray { repeated double data = 1; }
 
 // For special fields such as bigdecimal, array...
-message BytesArray {
-  repeated bytes data = 1;
-}
+message BytesArray { repeated bytes data = 1; }
 
-message StringArray {
-  repeated string data = 1;
-}
+message StringArray { repeated string data = 1; }
+
+message ArrayArray { repeated ScalarField data = 1; }
+
+message JSONArray { repeated bytes data = 1; }
 
 message ScalarField {
   oneof data {
@@ -103,6 +97,8 @@ message ScalarField {
     DoubleArray double_data = 5;
     StringArray string_data = 6;
     BytesArray bytes_data = 7;
+    ArrayArray array_data = 8;
+    JSONArray json_data = 9;
   }
 }
 
@@ -139,4 +135,3 @@ message SearchResultData {
   IDs ids = 5;
   repeated int64 topks = 6;
 }
-