feat: allow users to write pk field when autoid is enabled (#44520)

issue: https://github.com/milvus-io/milvus/issues/44011
pr: https://github.com/milvus-io/milvus/pull/44424

---------

Signed-off-by: sunby <sunbingyi1992@gmail.com>

internal/datanode/importv2/util.go

@@ -174,7 +174,13 @@ func AppendSystemFieldsData(task *ImportTask, data *storage.InsertData, rowNum i
 	for i := 0; i < rowNum; i++ {
 		ids[i] = start + int64(i)
 	}
+	pkData, ok := data.Data[pkField.GetFieldID()]
+	allowInsertAutoID, _ := common.IsAllowInsertAutoID(task.req.Schema.GetProperties()...)
 	if pkField.GetAutoID() {
+		if allowInsertAutoID && ok && pkData != nil {
+			// if allowInsertAutoID is true, and pkData is not nil, skip generating primary key data
+			return nil
+		}
 		switch pkField.GetDataType() {
 		case schemapb.DataType_Int64:
 			data.Data[pkField.GetFieldID()] = &storage.Int64FieldData{Data: ids}

internal/datanode/importv2/util_test.go

@@ -95,6 +95,54 @@ func Test_AppendSystemFieldsData(t *testing.T) {
 	assert.Equal(t, count, insertData.Data[common.TimeStampField].RowNum())
 }
 
+func Test_AppendSystemFieldsData_AllowInsertAutoID_KeepUserPK(t *testing.T) {
+	const count = 10
+
+	pkField := &schemapb.FieldSchema{
+		FieldID:      100,
+		Name:         "pk",
+		DataType:     schemapb.DataType_Int64,
+		IsPrimaryKey: true,
+		AutoID:       true,
+	}
+	vecField := &schemapb.FieldSchema{
+		FieldID:  101,
+		Name:     "vec",
+		DataType: schemapb.DataType_FloatVector,
+		TypeParams: []*commonpb.KeyValuePair{
+			{Key: common.DimKey, Value: "4"},
+		},
+	}
+
+	schema := &schemapb.CollectionSchema{}
+	schema.Fields = []*schemapb.FieldSchema{pkField, vecField}
+	schema.Properties = []*commonpb.KeyValuePair{{Key: common.AllowInsertAutoIDKey, Value: "true"}}
+
+	task := &ImportTask{
+		req:       &datapb.ImportRequest{Ts: 1000, Schema: schema},
+		allocator: allocator.NewLocalAllocator(0, count*2),
+	}
+
+	insertData, err := testutil.CreateInsertData(schema, count)
+	assert.NoError(t, err)
+
+	userPK := make([]int64, count)
+	for i := 0; i < count; i++ {
+		userPK[i] = 1000 + int64(i)
+	}
+	insertData.Data[pkField.GetFieldID()] = &storage.Int64FieldData{Data: userPK}
+
+	rowNum, _ := GetInsertDataRowCount(insertData, task.GetSchema())
+	err = AppendSystemFieldsData(task, insertData, rowNum)
+	assert.NoError(t, err)
+
+	got := insertData.Data[pkField.GetFieldID()].(*storage.Int64FieldData)
+	assert.Equal(t, count, got.RowNum())
+	for i := 0; i < count; i++ {
+		assert.Equal(t, userPK[i], got.Data[i])
+	}
+}
+
 func Test_UnsetAutoID(t *testing.T) {
 	pkField := &schemapb.FieldSchema{
 		FieldID:      100,

internal/proxy/task.go

@@ -977,6 +977,10 @@ func (t *alterCollectionTask) PreExecute(ctx context.Context) error {
 	if len(t.GetProperties()) > 0 && len(t.GetDeleteKeys()) > 0 {
 		return merr.WrapErrParameterInvalidMsg("cannot provide both DeleteKeys and ExtraParams")
 	}
+	collSchema, err := globalMetaCache.GetCollectionSchema(ctx, t.GetDbName(), t.CollectionName)
+	if err != nil {
+		return err
+	}
 
 	collectionID, err := globalMetaCache.GetCollectionID(ctx, t.GetDbName(), t.CollectionName)
 	if err != nil {
@@ -995,6 +999,16 @@ func (t *alterCollectionTask) PreExecute(ctx context.Context) error {
 				return merr.WrapErrCollectionLoaded(t.CollectionName, "can not alter mmap properties if collection loaded")
 			}
 		}
+		enabled, _ := common.IsAllowInsertAutoID(t.Properties...)
+		if enabled {
+			primaryFieldSchema, err := typeutil.GetPrimaryFieldSchema(collSchema.CollectionSchema)
+			if err != nil {
+				return err
+			}
+			if !primaryFieldSchema.AutoID {
+				return merr.WrapErrParameterInvalidMsg("the value for %s must be false when autoID is false", common.AllowInsertAutoIDKey)
+			}
+		}
 	} else if len(t.GetDeleteKeys()) > 0 {
 		key := hasPropInDeletekeys(t.DeleteKeys)
 		if key != "" {

internal/proxy/task_insert_test.go

@@ -10,7 +10,11 @@ import (
 	"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
 	"github.com/milvus-io/milvus-proto/go-api/v2/msgpb"
 	"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
+	"github.com/milvus-io/milvus/internal/allocator"
+	"github.com/milvus-io/milvus/internal/mocks"
+	"github.com/milvus-io/milvus/pkg/v2/common"
 	"github.com/milvus-io/milvus/pkg/v2/mq/msgstream"
+	"github.com/milvus-io/milvus/pkg/v2/proto/rootcoordpb"
 	"github.com/milvus-io/milvus/pkg/v2/util/merr"
 	"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
 	"github.com/milvus-io/milvus/pkg/v2/util/testutils"
@@ -312,6 +316,113 @@ func TestMaxInsertSize(t *testing.T) {
 	})
 }
 
+func TestInsertTask_KeepUserPK_WhenAllowInsertAutoIDTrue(t *testing.T) {
+	paramtable.Init()
+	// run auto-id path with field count check; allow user to pass PK
+	Params.Save(Params.ProxyCfg.SkipAutoIDCheck.Key, "false")
+	defer Params.Reset(Params.ProxyCfg.SkipAutoIDCheck.Key)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	rc := mocks.NewMockRootCoordClient(t)
+	rc.EXPECT().AllocID(mock.Anything, mock.Anything).Return(&rootcoordpb.AllocIDResponse{
+		Status: merr.Status(nil),
+		ID:     11198,
+		Count:  10,
+	}, nil)
+	idAllocator, err := allocator.NewIDAllocator(ctx, rc, 0)
+	idAllocator.Start()
+	defer idAllocator.Close()
+	assert.NoError(t, err)
+
+	nb := 5
+	userIDs := []int64{101, 102, 103, 104, 105}
+
+	collectionName := "TestInsertTask_KeepUserPK"
+	schema := &schemapb.CollectionSchema{
+		Name:   collectionName,
+		AutoID: true,
+		Fields: []*schemapb.FieldSchema{
+			{FieldID: 100, Name: "id", DataType: schemapb.DataType_Int64, IsPrimaryKey: true, AutoID: true},
+		},
+		Properties: []*commonpb.KeyValuePair{
+			{Key: common.AllowInsertAutoIDKey, Value: "true"},
+		},
+	}
+
+	pkFieldData := &schemapb.FieldData{
+		FieldName: "id",
+		FieldId:   100,
+		Type:      schemapb.DataType_Int64,
+		Field: &schemapb.FieldData_Scalars{
+			Scalars: &schemapb.ScalarField{
+				Data: &schemapb.ScalarField_LongData{
+					LongData: &schemapb.LongArray{Data: userIDs},
+				},
+			},
+		},
+	}
+
+	task := insertTask{
+		ctx: context.Background(),
+		insertMsg: &BaseInsertTask{
+			InsertRequest: &msgpb.InsertRequest{
+				CollectionName: collectionName,
+				DbName:         "test_db",
+				PartitionName:  "_default",
+				Base: &commonpb.MsgBase{
+					MsgType: commonpb.MsgType_Insert,
+				},
+				Version:    msgpb.InsertDataVersion_ColumnBased,
+				FieldsData: []*schemapb.FieldData{pkFieldData},
+				NumRows:    uint64(nb),
+			},
+		},
+		idAllocator: idAllocator,
+	}
+
+	info := newSchemaInfo(schema)
+	cache := NewMockCache(t)
+	collectionID := UniqueID(0)
+	cache.On("GetCollectionID",
+		mock.Anything, // context.Context
+		mock.AnythingOfType("string"),
+		mock.AnythingOfType("string"),
+	).Return(collectionID, nil)
+
+	cache.On("GetCollectionSchema",
+		mock.Anything, // context.Context
+		mock.AnythingOfType("string"),
+		mock.AnythingOfType("string"),
+	).Return(info, nil)
+
+	cache.On("GetCollectionInfo",
+		mock.Anything,
+		mock.Anything,
+		mock.Anything,
+		mock.Anything,
+	).Return(&collectionInfo{schema: info}, nil)
+
+	cache.On("GetDatabaseInfo",
+		mock.Anything,
+		mock.Anything,
+	).Return(&databaseInfo{properties: []*commonpb.KeyValuePair{}}, nil)
+
+	globalMetaCache = cache
+
+	err = task.PreExecute(context.Background())
+	assert.NoError(t, err)
+
+	ids := task.result.IDs
+	if ids.GetIntId() == nil {
+		t.Fatalf("expected int IDs, got nil")
+	}
+	got := ids.GetIntId().GetData()
+
+	assert.Equal(t, userIDs, got)
+}
+
 func TestInsertTaskForSchemaMismatch(t *testing.T) {
 	cache := globalMetaCache
 	defer func() { globalMetaCache = cache }()

internal/proxy/task_test.go

@@ -397,6 +397,81 @@ func constructCollectionSchemaWithAllType(
 	}
 }
 
+func TestAlterCollection_AllowInsertAutoID_Validation(t *testing.T) {
+	ctx := context.Background()
+
+	buildRoot := func(autoID bool) *mocks.MockRootCoordClient {
+		root := mocks.NewMockRootCoordClient(t)
+		// InitMetaCache requires ListPolicy
+		root.EXPECT().ListPolicy(mock.Anything, mock.Anything, mock.Anything).Return(&internalpb.ListPolicyResponse{Status: merr.Success()}, nil).Once()
+		// Meta cache update path fetches partitions info
+		root.EXPECT().ShowPartitions(mock.Anything, mock.Anything, mock.Anything).Return(&milvuspb.ShowPartitionsResponse{Status: merr.Success()}, nil).Maybe()
+		// DescribeCollection returns a schema with PK autoID configurable
+		root.EXPECT().DescribeCollection(mock.Anything, mock.Anything, mock.Anything).Return(&milvuspb.DescribeCollectionResponse{
+			Status:       merr.Success(),
+			CollectionID: 1,
+			DbName:       dbName,
+			Schema: &schemapb.CollectionSchema{
+				Name:   "allow_autoid_test",
+				AutoID: false,
+				Fields: []*schemapb.FieldSchema{
+					{FieldID: 100, Name: "pk", IsPrimaryKey: true, DataType: schemapb.DataType_Int64, AutoID: autoID},
+					{FieldID: 101, Name: "vec", DataType: schemapb.DataType_FloatVector, TypeParams: []*commonpb.KeyValuePair{{Key: common.DimKey, Value: "8"}}},
+				},
+			},
+		}, nil).Maybe()
+		return root
+	}
+
+	t.Run("success when PK autoID=true and allow_insert_autoid=true", func(t *testing.T) {
+		cache := globalMetaCache
+		defer func() { globalMetaCache = cache }()
+		root := buildRoot(true)
+		query := mocks.NewMockQueryCoordClient(t)
+		query.EXPECT().ShowCollections(mock.Anything, mock.Anything).Return(&querypb.ShowCollectionsResponse{}, nil).Maybe()
+		mgr := newShardClientMgr()
+		err := InitMetaCache(ctx, root, query, mgr)
+		assert.NoError(t, err)
+
+		task := &alterCollectionTask{
+			AlterCollectionRequest: &milvuspb.AlterCollectionRequest{
+				Base:           &commonpb.MsgBase{MsgType: commonpb.MsgType_AlterCollectionField},
+				DbName:         dbName,
+				CollectionName: "allow_autoid_test",
+				Properties: []*commonpb.KeyValuePair{
+					{Key: common.AllowInsertAutoIDKey, Value: "true"},
+				},
+			},
+		}
+		err = task.PreExecute(ctx)
+		assert.NoError(t, err)
+	})
+
+	t.Run("error when PK autoID=false and allow_insert_autoid=true", func(t *testing.T) {
+		cache := globalMetaCache
+		defer func() { globalMetaCache = cache }()
+		root := buildRoot(false)
+		query := mocks.NewMockQueryCoordClient(t)
+		query.EXPECT().ShowCollections(mock.Anything, mock.Anything).Return(&querypb.ShowCollectionsResponse{}, nil).Maybe()
+		mgr := newShardClientMgr()
+		err := InitMetaCache(ctx, root, query, mgr)
+		assert.NoError(t, err)
+
+		task := &alterCollectionTask{
+			AlterCollectionRequest: &milvuspb.AlterCollectionRequest{
+				Base:           &commonpb.MsgBase{MsgType: commonpb.MsgType_AlterCollectionField},
+				DbName:         dbName,
+				CollectionName: "allow_autoid_test",
+				Properties: []*commonpb.KeyValuePair{
+					{Key: common.AllowInsertAutoIDKey, Value: "true"},
+				},
+			},
+		}
+		err = task.PreExecute(ctx)
+		assert.Error(t, err)
+	})
+}
+
 func constructPlaceholderGroup(
 	nq, dim int,
 ) *commonpb.PlaceholderGroup {
@@ -4693,3 +4768,52 @@ func TestAlterCollectionField1(t *testing.T) {
 		})
 	}
 }
+
+func TestAlterCollectionField_AllowInsertAutoID_AutoIDFalse(t *testing.T) {
+	rc := NewRootCoordMock()
+	qc := mocks.NewMockQueryCoordClient(t)
+	qc.EXPECT().ShowCollections(mock.Anything, mock.Anything).Return(&querypb.ShowCollectionsResponse{}, nil).Maybe()
+	InitMetaCache(context.Background(), rc, qc, nil)
+	ctx := context.Background()
+	collectionName := "test_alter_allow_insert_autoid_autoid_false"
+
+	// fallback: use existing helper to build schema with array field if needed; here use simple schema
+	schema := &schemapb.CollectionSchema{
+		Name: collectionName,
+		Fields: []*schemapb.FieldSchema{
+			{FieldID: 100, Name: "pk", IsPrimaryKey: true, DataType: schemapb.DataType_Int64, AutoID: false},
+			{FieldID: 101, Name: "vec", DataType: schemapb.DataType_FloatVector, TypeParams: []*commonpb.KeyValuePair{{Key: common.DimKey, Value: "8"}}},
+		},
+	}
+	schemaBytes, err := proto.Marshal(schema)
+	assert.NoError(t, err)
+
+	createColReq := &milvuspb.CreateCollectionRequest{
+		Base: &commonpb.MsgBase{
+			MsgType:   commonpb.MsgType_CreateCollection,
+			MsgID:     200,
+			Timestamp: 200,
+		},
+		DbName:         dbName,
+		CollectionName: collectionName,
+		Schema:         schemaBytes,
+		ShardsNum:      1,
+	}
+	_, _ = rc.CreateCollection(ctx, createColReq)
+
+	task := &alterCollectionTask{
+		AlterCollectionRequest: &milvuspb.AlterCollectionRequest{
+			Base:           &commonpb.MsgBase{},
+			CollectionName: collectionName,
+			Properties: []*commonpb.KeyValuePair{
+				{Key: common.AllowInsertAutoIDKey, Value: "true"},
+			},
+		},
+		rootCoord:  rc,
+		queryCoord: qc,
+	}
+
+	err = task.PreExecute(ctx)
+	assert.Error(t, err)
+	assert.Equal(t, merr.Code(merr.ErrParameterInvalid), merr.Code(err))
+}

internal/proxy/util.go

@@ -1652,6 +1652,10 @@ func checkFieldsDataBySchema(schema *schemapb.CollectionSchema, insertMsg *msgst
 		dataNameSet.Insert(fieldName)
 	}
 
+	allowInsertAutoID, _ := common.IsAllowInsertAutoID(schema.GetProperties()...)
+	hasPkData := false
+	needAutoGenPk := false
+
 	for _, fieldSchema := range schema.Fields {
 		if fieldSchema.AutoID && !fieldSchema.IsPrimaryKey {
 			log.Warn("not primary key field, but set autoID true", zap.String("field", fieldSchema.GetName()))
@@ -1660,16 +1664,18 @@ func checkFieldsDataBySchema(schema *schemapb.CollectionSchema, insertMsg *msgst
 
 		if fieldSchema.IsPrimaryKey {
 			primaryKeyNum++
+			hasPkData = dataNameSet.Contain(fieldSchema.GetName())
+			needAutoGenPk = fieldSchema.AutoID && (!allowInsertAutoID || !hasPkData)
 		}
 		if fieldSchema.GetDefaultValue() != nil && fieldSchema.IsPrimaryKey {
 			return merr.WrapErrParameterInvalidMsg("primary key can't be with default value")
 		}
-		if (fieldSchema.IsPrimaryKey && fieldSchema.AutoID && !Params.ProxyCfg.SkipAutoIDCheck.GetAsBool() && inInsert) || fieldSchema.GetIsFunctionOutput() {
+		if (fieldSchema.IsPrimaryKey && fieldSchema.AutoID && !Params.ProxyCfg.SkipAutoIDCheck.GetAsBool() && needAutoGenPk && inInsert) || fieldSchema.GetIsFunctionOutput() {
 			// when inInsert, no need to pass when pk is autoid and SkipAutoIDCheck is false
 			autoGenFieldNum++
 		}
 		if _, ok := dataNameSet[fieldSchema.GetName()]; !ok {
-			if (fieldSchema.IsPrimaryKey && fieldSchema.AutoID && !Params.ProxyCfg.SkipAutoIDCheck.GetAsBool() && inInsert) || fieldSchema.GetIsFunctionOutput() {
+			if (fieldSchema.IsPrimaryKey && fieldSchema.AutoID && !Params.ProxyCfg.SkipAutoIDCheck.GetAsBool() && needAutoGenPk && inInsert) || fieldSchema.GetIsFunctionOutput() {
 				// autoGenField
 				continue
 			}
@@ -1729,9 +1735,9 @@ func checkPrimaryFieldData(schema *schemapb.CollectionSchema, insertMsg *msgstre
 	var primaryFieldData *schemapb.FieldData
 	// when checkPrimaryFieldData in insert
 
-	skipAutoIDCheck := Params.ProxyCfg.SkipAutoIDCheck.GetAsBool() &&
-		primaryFieldSchema.AutoID &&
-		typeutil.IsPrimaryFieldDataExist(insertMsg.GetFieldsData(), primaryFieldSchema)
+	allowInsertAutoID, _ := common.IsAllowInsertAutoID(schema.GetProperties()...)
+	skipAutoIDCheck := primaryFieldSchema.AutoID &&
+		typeutil.IsPrimaryFieldDataExist(insertMsg.GetFieldsData(), primaryFieldSchema) && (Params.ProxyCfg.SkipAutoIDCheck.GetAsBool() || allowInsertAutoID)
 
 	if !primaryFieldSchema.AutoID || skipAutoIDCheck {
 		primaryFieldData, err = typeutil.GetPrimaryFieldData(insertMsg.GetFieldsData(), primaryFieldSchema)
@@ -1742,7 +1748,7 @@ func checkPrimaryFieldData(schema *schemapb.CollectionSchema, insertMsg *msgstre
 	} else {
 		// check primary key data not exist
 		if typeutil.IsPrimaryFieldDataExist(insertMsg.GetFieldsData(), primaryFieldSchema) {
-			return nil, merr.WrapErrParameterInvalidMsg(fmt.Sprintf("can not assign primary field data when auto id enabled %v", primaryFieldSchema.Name))
+			return nil, merr.WrapErrParameterInvalidMsg(fmt.Sprintf("can not assign primary field data when auto id enabled and allow_insert_auto_id is false %v", primaryFieldSchema.Name))
 		}
 		// if autoID == true, currently support autoID for int64 and varchar PrimaryField
 		primaryFieldData, err = autoGenPrimaryFieldData(primaryFieldSchema, insertMsg.GetRowIDs())

internal/util/importutilv2/csv/row_parser.go

@@ -27,6 +27,7 @@ import (
 	"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
 	"github.com/milvus-io/milvus/internal/json"
 	"github.com/milvus-io/milvus/internal/util/importutilv2/common"
+	pkgcommon "github.com/milvus-io/milvus/pkg/v2/common"
 	"github.com/milvus-io/milvus/pkg/v2/util/merr"
 	"github.com/milvus-io/milvus/pkg/v2/util/parameterutil"
 	"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
@@ -71,8 +72,9 @@ func NewRowParser(schema *schemapb.CollectionSchema, header []string, nullkey st
 		}
 	}
 
+	allowInsertAutoID, _ := pkgcommon.IsAllowInsertAutoID(schema.GetProperties()...)
 	// check if csv header provides the primary key while it should be auto-generated
-	if pkField.GetAutoID() && lo.Contains(header, pkField.GetName()) {
+	if pkField.GetAutoID() && lo.Contains(header, pkField.GetName()) && !allowInsertAutoID {
 		return nil, fmt.Errorf("the primary key '%s' is auto-generated, no need to provide", pkField.GetName())
 	}
 

internal/util/importutilv2/json/reader_test.go

@@ -314,3 +314,68 @@ func (suite *ReaderSuite) TestVector() {
 func TestUtil(t *testing.T) {
 	suite.Run(t, new(ReaderSuite))
 }
+
+func (suite *ReaderSuite) TestAllowInsertAutoID_KeepUserPK() {
+	schema := &schemapb.CollectionSchema{
+		Fields: []*schemapb.FieldSchema{
+			{
+				FieldID:      100,
+				Name:         "pk",
+				IsPrimaryKey: true,
+				DataType:     schemapb.DataType_Int64,
+				AutoID:       true,
+			},
+			{
+				FieldID:  101,
+				Name:     "vec",
+				DataType: schemapb.DataType_FloatVector,
+				TypeParams: []*commonpb.KeyValuePair{
+					{Key: common.DimKey, Value: "8"},
+				},
+			},
+		},
+	}
+
+	// build rows that explicitly include pk and a valid vec of dim 8
+	rows := make([]any, 0, suite.numRows)
+	for i := 0; i < suite.numRows; i++ {
+		row := make(map[string]any)
+		row["pk"] = int64(i + 1)
+		vec := make([]float64, 8)
+		for j := 0; j < 8; j++ {
+			vec[j] = float64(j)
+		}
+		row["vec"] = vec
+		rows = append(rows, row)
+	}
+	jsonBytes, err := json.Marshal(rows)
+	suite.NoError(err)
+
+	// allow_insert_autoid=false, providing PK should error
+	{
+		cm := mocks.NewChunkManager(suite.T())
+		cm.EXPECT().Reader(mock.Anything, mock.Anything).RunAndReturn(func(ctx context.Context, s string) (storage.FileReader, error) {
+			r := &mockReader{Reader: strings.NewReader(string(jsonBytes))}
+			return r, nil
+		})
+		reader, err := NewReader(context.Background(), cm, schema, "mockPath", math.MaxInt)
+		suite.NoError(err)
+		_, err = reader.Read()
+		suite.Error(err)
+		suite.Contains(err.Error(), "is auto-generated, no need to provide")
+	}
+
+	// allow_insert_autoid=true, providing PK should be allowed
+	{
+		schema.Properties = []*commonpb.KeyValuePair{{Key: common.AllowInsertAutoIDKey, Value: "true"}}
+		cm := mocks.NewChunkManager(suite.T())
+		cm.EXPECT().Reader(mock.Anything, mock.Anything).RunAndReturn(func(ctx context.Context, s string) (storage.FileReader, error) {
+			r := &mockReader{Reader: strings.NewReader(string(jsonBytes))}
+			return r, nil
+		})
+		reader, err := NewReader(context.Background(), cm, schema, "mockPath", math.MaxInt)
+		suite.NoError(err)
+		_, err = reader.Read()
+		suite.NoError(err)
+	}
+}

internal/util/importutilv2/json/row_parser.go

@@ -27,6 +27,7 @@ import (
 	"github.com/milvus-io/milvus/internal/json"
 	"github.com/milvus-io/milvus/internal/util/importutilv2/common"
 	"github.com/milvus-io/milvus/internal/util/nullutil"
+	pkgcommon "github.com/milvus-io/milvus/pkg/v2/common"
 	"github.com/milvus-io/milvus/pkg/v2/util/merr"
 	"github.com/milvus-io/milvus/pkg/v2/util/parameterutil"
 	"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
@@ -37,11 +38,12 @@ type RowParser interface {
 }
 
 type rowParser struct {
-	id2Dim       map[int64]int
-	id2Field     map[int64]*schemapb.FieldSchema
-	name2FieldID map[string]int64
-	pkField      *schemapb.FieldSchema
-	dynamicField *schemapb.FieldSchema
+	id2Dim            map[int64]int
+	id2Field          map[int64]*schemapb.FieldSchema
+	name2FieldID      map[string]int64
+	pkField           *schemapb.FieldSchema
+	dynamicField      *schemapb.FieldSchema
+	allowInsertAutoID bool
 }
 
 func NewRowParser(schema *schemapb.CollectionSchema) (RowParser, error) {
@@ -66,9 +68,10 @@ func NewRowParser(schema *schemapb.CollectionSchema) (RowParser, error) {
 	}
 	dynamicField := typeutil.GetDynamicField(schema)
 
+	allowInsertAutoID, _ := pkgcommon.IsAllowInsertAutoID(schema.GetProperties()...)
 	name2FieldID := lo.SliceToMap(
 		lo.Filter(schema.GetFields(), func(field *schemapb.FieldSchema, _ int) bool {
-			return !field.GetIsFunctionOutput() && !typeutil.IsAutoPKField(field) && field.GetName() != dynamicField.GetName()
+			return !field.GetIsFunctionOutput() && (!typeutil.IsAutoPKField(field) || allowInsertAutoID) && field.GetName() != dynamicField.GetName()
 		}),
 		func(field *schemapb.FieldSchema) (string, int64) {
 			return field.GetName(), field.GetFieldID()
@@ -76,11 +79,12 @@ func NewRowParser(schema *schemapb.CollectionSchema) (RowParser, error) {
 	)
 
 	return &rowParser{
-		id2Dim:       id2Dim,
-		id2Field:     id2Field,
-		name2FieldID: name2FieldID,
-		pkField:      pkField,
-		dynamicField: dynamicField,
+		id2Dim:            id2Dim,
+		id2Field:          id2Field,
+		name2FieldID:      name2FieldID,
+		pkField:           pkField,
+		dynamicField:      dynamicField,
+		allowInsertAutoID: allowInsertAutoID,
 	}, nil
 }
 
@@ -106,7 +110,7 @@ func (r *rowParser) Parse(raw any) (Row, error) {
 	if !ok {
 		return nil, fmt.Errorf("invalid JSON format, each row should be a key-value map, but got type %T", raw)
 	}
-	if _, ok = stringMap[r.pkField.GetName()]; ok && r.pkField.GetAutoID() {
+	if _, ok = stringMap[r.pkField.GetName()]; ok && r.pkField.GetAutoID() && !r.allowInsertAutoID {
 		return nil, fmt.Errorf("the primary key '%s' is auto-generated, no need to provide", r.pkField.GetName())
 	}
 	dynamicValues := make(map[string]any)

internal/util/importutilv2/parquet/util.go

@@ -25,6 +25,7 @@ import (
 	"github.com/samber/lo"
 
 	"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
+	"github.com/milvus-io/milvus/pkg/v2/common"
 	"github.com/milvus-io/milvus/pkg/v2/util/merr"
 	"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
 )
@@ -56,6 +57,7 @@ func CreateFieldReaders(ctx context.Context, fileReader *pqarrow.FileReader, sch
 	}
 
 	crs := make(map[int64]*FieldReader)
+	allowInsertAutoID, _ := common.IsAllowInsertAutoID(schema.GetProperties()...)
 	for i, pqField := range pqSchema.Fields() {
 		field, ok := nameToField[pqField.Name]
 		if !ok {
@@ -63,7 +65,7 @@ func CreateFieldReaders(ctx context.Context, fileReader *pqarrow.FileReader, sch
 			return nil, merr.WrapErrImportFailed(fmt.Sprintf("the field: %s is not in schema, "+
 				"if it's a dynamic field, please reformat data by bulk_writer", pqField.Name))
 		}
-		if typeutil.IsAutoPKField(field) {
+		if typeutil.IsAutoPKField(field) && !allowInsertAutoID {
 			return nil, merr.WrapErrImportFailed(
 				fmt.Sprintf("the primary key '%s' is auto-generated, no need to provide", field.GetName()))
 		}

pkg/common/common.go

@@ -215,6 +215,7 @@ const (
 	ReplicateIDKey             = "replicate.id"
 	ReplicateEndTSKey          = "replicate.endTS"
 	IndexNonEncoding           = "index.nonEncoding"
+	AllowInsertAutoIDKey       = "allow_insert_auto_id"
 )
 
 const (
@@ -471,3 +472,13 @@ func AllocAutoID(allocFunc func(uint32) (int64, int64, error), rowNum uint32, cl
 
 	return idStart | int64(reversed), idEnd | int64(reversed), nil
 }
+
+func IsAllowInsertAutoID(kvs ...*commonpb.KeyValuePair) (bool, bool) {
+	for _, kv := range kvs {
+		if kv.Key == AllowInsertAutoIDKey {
+			enable, _ := strconv.ParseBool(kv.Value)
+			return enable, true
+		}
+	}
+	return false, false
+}