diff --git a/Makefile.toml b/Makefile.toml
index f5271d854d..0664a3ea50 100644
--- a/Makefile.toml
+++ b/Makefile.toml
@@ -2,6 +2,7 @@ extend = [
     { path = "scripts/makefile/desktop.toml" },
     { path = "scripts/makefile/protobuf.toml" },
     { path = "scripts/makefile/tests.toml" },
+    { path = "scripts/makefile/docker.toml" },
 ]
 
 [env]
diff --git a/app_flowy/lib/workspace/domain/i_doc.dart b/app_flowy/lib/workspace/domain/i_doc.dart
index a643acc739..bbd0e28bfb 100644
--- a/app_flowy/lib/workspace/domain/i_doc.dart
+++ b/app_flowy/lib/workspace/domain/i_doc.dart
@@ -9,14 +9,14 @@ import 'package:flowy_sdk/protobuf/flowy-document/doc.pb.dart';
 import 'package:flowy_sdk/protobuf/flowy-workspace/errors.pb.dart';
 
 class FlowyDoc implements EditorDeltaSender {
-  final Doc doc;
+  final DocDelta doc;
   final IDoc iDocImpl;
   Document data;
 
   FlowyDoc({required this.doc, required this.data, required this.iDocImpl}) {
     data.sender = this;
   }
-  String get id => doc.id;
+  String get id => doc.docId;
 
   @override
   void sendNewDelta(Delta changeset, Delta delta) async {
@@ -40,7 +40,8 @@ class FlowyDoc implements EditorDeltaSender {
 }
 
 abstract class IDoc {
-  Future<Either<Doc, WorkspaceError>> readDoc();
-  Future<Either<Doc, WorkspaceError>> applyChangeset({required String json});
+  Future<Either<DocDelta, WorkspaceError>> readDoc();
+  Future<Either<DocDelta, WorkspaceError>> applyChangeset(
+      {required String json});
   Future<Either<Unit, WorkspaceError>> closeDoc();
 }
diff --git a/app_flowy/lib/workspace/infrastructure/i_doc_impl.dart b/app_flowy/lib/workspace/infrastructure/i_doc_impl.dart
index 8c771d78bb..a294baca1b 100644
--- a/app_flowy/lib/workspace/infrastructure/i_doc_impl.dart
+++ b/app_flowy/lib/workspace/infrastructure/i_doc_impl.dart
@@ -18,13 +18,14 @@ class IDocImpl extends IDoc {
   }
 
   @override
-  Future<Either<Doc, WorkspaceError>> readDoc() async {
+  Future<Either<DocDelta, WorkspaceError>> readDoc() async {
     final docOrFail = await repo.readDoc();
     return docOrFail;
   }
 
   @override
-  Future<Either<Doc, WorkspaceError>> applyChangeset({required String json}) {
+  Future<Either<DocDelta, WorkspaceError>> applyChangeset(
+      {required String json}) {
     return repo.applyDelta(data: json);
   }
 }
diff --git a/app_flowy/lib/workspace/infrastructure/repos/doc_repo.dart b/app_flowy/lib/workspace/infrastructure/repos/doc_repo.dart
index c64a710062..2ef57d7c22 100644
--- a/app_flowy/lib/workspace/infrastructure/repos/doc_repo.dart
+++ b/app_flowy/lib/workspace/infrastructure/repos/doc_repo.dart
@@ -10,12 +10,12 @@ class DocRepository {
     required this.docId,
   });
 
-  Future<Either<Doc, WorkspaceError>> readDoc() {
+  Future<Either<DocDelta, WorkspaceError>> readDoc() {
     final request = OpenViewRequest.create()..viewId = docId;
     return WorkspaceEventOpenView(request).send();
   }
 
-  Future<Either<Doc, WorkspaceError>> applyDelta({required String data}) {
+  Future<Either<DocDelta, WorkspaceError>> applyDelta({required String data}) {
     final request = DocDelta.create()
       ..docId = docId
       ..data = data;
diff --git a/app_flowy/packages/flowy_sdk/lib/dispatch/code_gen.dart b/app_flowy/packages/flowy_sdk/lib/dispatch/code_gen.dart
index 69ca2fc7fb..a5144e565e 100644
--- a/app_flowy/packages/flowy_sdk/lib/dispatch/code_gen.dart
+++ b/app_flowy/packages/flowy_sdk/lib/dispatch/code_gen.dart
@@ -241,14 +241,14 @@ class WorkspaceEventOpenView {
      OpenViewRequest request;
      WorkspaceEventOpenView(this.request);
 
-    Future<Either<Doc, WorkspaceError>> send() {
+    Future<Either<DocDelta, WorkspaceError>> send() {
     final request = FFIRequest.create()
           ..event = WorkspaceEvent.OpenView.toString()
           ..payload = requestToBytes(this.request);
 
     return Dispatch.asyncRequest(request)
         .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(Doc.fromBuffer(okBytes)),
+           (okBytes) => left(DocDelta.fromBuffer(okBytes)),
            (errBytes) => right(WorkspaceError.fromBuffer(errBytes)),
         ));
     }
@@ -258,14 +258,14 @@ class WorkspaceEventApplyDocDelta {
      DocDelta request;
      WorkspaceEventApplyDocDelta(this.request);
 
-    Future<Either<Doc, WorkspaceError>> send() {
+    Future<Either<DocDelta, WorkspaceError>> send() {
     final request = FFIRequest.create()
           ..event = WorkspaceEvent.ApplyDocDelta.toString()
           ..payload = requestToBytes(this.request);
 
     return Dispatch.asyncRequest(request)
         .then((bytesResult) => bytesResult.fold(
-           (okBytes) => left(Doc.fromBuffer(okBytes)),
+           (okBytes) => left(DocDelta.fromBuffer(okBytes)),
            (errBytes) => right(WorkspaceError.fromBuffer(errBytes)),
         ));
     }
diff --git a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pb.dart b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pb.dart
index 785dcee75b..af9300c081 100644
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pb.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pb.dart
@@ -76,6 +76,7 @@ class Doc extends $pb.GeneratedMessage {
     ..aOS(1, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'id')
     ..aOS(2, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'data')
     ..aInt64(3, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'revId')
+    ..aInt64(4, const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'baseRevId')
     ..hasRequiredFields = false
   ;
 
@@ -84,6 +85,7 @@ class Doc extends $pb.GeneratedMessage {
     $core.String? id,
     $core.String? data,
     $fixnum.Int64? revId,
+    $fixnum.Int64? baseRevId,
   }) {
     final _result = create();
     if (id != null) {
@@ -95,6 +97,9 @@ class Doc extends $pb.GeneratedMessage {
     if (revId != null) {
       _result.revId = revId;
     }
+    if (baseRevId != null) {
+      _result.baseRevId = baseRevId;
+    }
     return _result;
   }
   factory Doc.fromBuffer($core.List<$core.int> i, [$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) => create()..mergeFromBuffer(i, r);
@@ -144,6 +149,15 @@ class Doc extends $pb.GeneratedMessage {
   $core.bool hasRevId() => $_has(2);
   @$pb.TagNumber(3)
   void clearRevId() => clearField(3);
+
+  @$pb.TagNumber(4)
+  $fixnum.Int64 get baseRevId => $_getI64(3);
+  @$pb.TagNumber(4)
+  set baseRevId($fixnum.Int64 v) { $_setInt64(3, v); }
+  @$pb.TagNumber(4)
+  $core.bool hasBaseRevId() => $_has(3);
+  @$pb.TagNumber(4)
+  void clearBaseRevId() => clearField(4);
 }
 
 class UpdateDocParams extends $pb.GeneratedMessage {
diff --git a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pbjson.dart b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pbjson.dart
index 153a237b99..b6d9a6857a 100644
--- a/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pbjson.dart
+++ b/app_flowy/packages/flowy_sdk/lib/protobuf/flowy-document/doc.pbjson.dart
@@ -26,11 +26,12 @@ const Doc$json = const {
     const {'1': 'id', '3': 1, '4': 1, '5': 9, '10': 'id'},
     const {'1': 'data', '3': 2, '4': 1, '5': 9, '10': 'data'},
     const {'1': 'rev_id', '3': 3, '4': 1, '5': 3, '10': 'revId'},
+    const {'1': 'base_rev_id', '3': 4, '4': 1, '5': 3, '10': 'baseRevId'},
   ],
 };
 
 /// Descriptor for `Doc`. Decode as a `google.protobuf.DescriptorProto`.
-final $typed_data.Uint8List docDescriptor = $convert.base64Decode('CgNEb2MSDgoCaWQYASABKAlSAmlkEhIKBGRhdGEYAiABKAlSBGRhdGESFQoGcmV2X2lkGAMgASgDUgVyZXZJZA==');
+final $typed_data.Uint8List docDescriptor = $convert.base64Decode('CgNEb2MSDgoCaWQYASABKAlSAmlkEhIKBGRhdGEYAiABKAlSBGRhdGESFQoGcmV2X2lkGAMgASgDUgVyZXZJZBIeCgtiYXNlX3Jldl9pZBgEIAEoA1IJYmFzZVJldklk');
 @$core.Deprecated('Use updateDocParamsDescriptor instead')
 const UpdateDocParams$json = const {
   '1': 'UpdateDocParams',
diff --git a/backend/Makefile b/backend/Makefile
index 5b4e897a95..6828ac6db4 100644
--- a/backend/Makefile
+++ b/backend/Makefile
@@ -1,3 +1,3 @@
 include scripts/database/database.mk
 
-.PHONY: init_database  add_migrations run_migrations reset_db echo_db_url
\ No newline at end of file
+.PHONY: init_postgres init_database  add_migrations run_migrations reset_db echo_db_url
\ No newline at end of file
diff --git a/backend/scripts/database/init_postgres.sh b/backend/scripts/database/init_postgres.sh
index 326fde3fe4..60816f0959 100755
--- a/backend/scripts/database/init_postgres.sh
+++ b/backend/scripts/database/init_postgres.sh
@@ -2,9 +2,16 @@
 set -x
 set -eo pipefail
 
+#if [[ -z "${RESET}" ]]
+#then
+#  docker stop flowy
+#  docker rm flowy
+#fi
+
 if [[ -z "${SKIP_DOCKER}" ]]
 then
   docker run \
+      --name="flowy" \
       -e POSTGRES_USER=${DB_USER} \
       -e POSTGRES_PASSWORD=${DB_PASSWORD} \
       -e POSTGRES_DB=${DB_NAME} \
diff --git a/backend/tests/document/helper.rs b/backend/tests/document/helper.rs
index fb8bb6ccfc..66271fc292 100644
--- a/backend/tests/document/helper.rs
+++ b/backend/tests/document/helper.rs
@@ -15,7 +15,7 @@ use flowy_user::services::user::UserSession;
 use crate::helper::{spawn_server, TestServer};
 use flowy_document::protobuf::UpdateDocParams;
 
-use flowy_ot::core::{Attribute, Interval};
+use flowy_ot::core::{Attribute, Delta, Interval};
 use parking_lot::RwLock;
 
 pub struct DocumentTest {
@@ -152,11 +152,14 @@ async fn run_scripts(context: Arc<RwLock<ScriptContext>>, scripts: Vec<DocScript
 }
 
 fn assert_eq(expect: &str, receive: &str) {
-    if expect != receive {
-        log::error!("expect: {}", expect);
-        log::error!("but receive: {}", receive);
+    let expected_delta: Delta = serde_json::from_str(expect).unwrap();
+    let target_delta: Delta = serde_json::from_str(receive).unwrap();
+
+    if expected_delta != target_delta {
+        log::error!("✅ expect: {}", expect,);
+        log::error!("❌ receive: {}", receive);
     }
-    assert_eq!(expect, receive);
+    assert_eq!(target_delta, expected_delta);
 }
 
 async fn create_doc(flowy_test: &FlowyTest) -> String {
diff --git a/rust-lib/flowy-document/src/entities/doc/doc.rs b/rust-lib/flowy-document/src/entities/doc/doc.rs
index 48e156dcaa..ba226aa857 100644
--- a/rust-lib/flowy-document/src/entities/doc/doc.rs
+++ b/rust-lib/flowy-document/src/entities/doc/doc.rs
@@ -1,4 +1,6 @@
+use crate::errors::DocResult;
 use flowy_derive::ProtoBuf;
+use flowy_ot::core::Delta;
 
 #[derive(ProtoBuf, Default, Debug, Clone)]
 pub struct CreateDocParams {
@@ -28,6 +30,16 @@ pub struct Doc {
 
     #[pb(index = 3)]
     pub rev_id: i64,
+
+    #[pb(index = 4)]
+    pub base_rev_id: i64,
+}
+
+impl Doc {
+    pub fn delta(&self) -> DocResult<Delta> {
+        let delta = Delta::from_bytes(&self.data)?;
+        Ok(delta)
+    }
 }
 
 #[derive(ProtoBuf, Default, Debug, Clone)]
diff --git a/rust-lib/flowy-document/src/entities/doc/revision.rs b/rust-lib/flowy-document/src/entities/doc/revision.rs
index 8033c0c4c4..4fc8fcc983 100644
--- a/rust-lib/flowy-document/src/entities/doc/revision.rs
+++ b/rust-lib/flowy-document/src/entities/doc/revision.rs
@@ -1,5 +1,6 @@
 use crate::services::util::md5;
 
+use crate::entities::doc::Doc;
 use flowy_derive::{ProtoBuf, ProtoBuf_Enum};
 use flowy_ot::core::Delta;
 use std::fmt::Formatter;
@@ -116,6 +117,18 @@ impl Revision {
     }
 }
 
+pub fn revision_from_doc(doc: Doc, ty: RevType) -> Revision {
+    let delta_data = doc.data.as_bytes();
+    let revision = Revision::new(
+        doc.base_rev_id.clone(),
+        doc.rev_id.clone(),
+        delta_data.to_owned(),
+        &doc.id,
+        ty,
+    );
+    revision
+}
+
 #[derive(Debug, Clone, Default, ProtoBuf)]
 pub struct RevisionRange {
     #[pb(index = 1)]
diff --git a/rust-lib/flowy-document/src/module.rs b/rust-lib/flowy-document/src/module.rs
index 45446be300..4729dcdc2d 100644
--- a/rust-lib/flowy-document/src/module.rs
+++ b/rust-lib/flowy-document/src/module.rs
@@ -1,12 +1,5 @@
-use std::sync::Arc;
-
-use diesel::SqliteConnection;
-
-use flowy_database::ConnectionPool;
-use flowy_net::config::ServerConfig;
-
 use crate::{
-    entities::doc::{CreateDocParams, Doc, DocDelta, QueryDocParams},
+    entities::doc::{CreateDocParams, DocDelta, QueryDocParams},
     errors::DocError,
     services::{
         doc::{doc_controller::DocController, edit::ClientEditDoc},
@@ -14,6 +7,9 @@ use crate::{
         ws::WsDocumentManager,
     },
 };
+use flowy_database::ConnectionPool;
+use flowy_net::config::ServerConfig;
+use std::sync::Arc;
 
 pub trait DocumentUser: Send + Sync {
     fn user_dir(&self) -> Result<String, DocError>;
@@ -41,13 +37,13 @@ impl FlowyDocument {
         Ok(())
     }
 
-    pub fn create(&self, params: CreateDocParams, conn: &SqliteConnection) -> Result<(), DocError> {
-        let _ = self.doc_ctrl.create(params, conn)?;
+    pub fn create(&self, params: CreateDocParams) -> Result<(), DocError> {
+        let _ = self.doc_ctrl.create(params)?;
         Ok(())
     }
 
-    pub fn delete(&self, params: QueryDocParams, conn: &SqliteConnection) -> Result<(), DocError> {
-        let _ = self.doc_ctrl.delete(params, conn)?;
+    pub fn delete(&self, params: QueryDocParams) -> Result<(), DocError> {
+        let _ = self.doc_ctrl.delete(params)?;
         Ok(())
     }
 
@@ -60,7 +56,7 @@ impl FlowyDocument {
         Ok(edit_context)
     }
 
-    pub async fn apply_doc_delta(&self, params: DocDelta) -> Result<Doc, DocError> {
+    pub async fn apply_doc_delta(&self, params: DocDelta) -> Result<DocDelta, DocError> {
         // workaround: compare the rust's delta with flutter's delta. Will be removed
         // very soon
         let doc = self.doc_ctrl.edit_doc(params.clone()).await?;
diff --git a/rust-lib/flowy-document/src/protobuf/model/doc.rs b/rust-lib/flowy-document/src/protobuf/model/doc.rs
index b238de7c17..117dfbcd14 100644
--- a/rust-lib/flowy-document/src/protobuf/model/doc.rs
+++ b/rust-lib/flowy-document/src/protobuf/model/doc.rs
@@ -230,6 +230,7 @@ pub struct Doc {
     pub id: ::std::string::String,
     pub data: ::std::string::String,
     pub rev_id: i64,
+    pub base_rev_id: i64,
     // special fields
     pub unknown_fields: ::protobuf::UnknownFields,
     pub cached_size: ::protobuf::CachedSize,
@@ -312,6 +313,21 @@ impl Doc {
     pub fn set_rev_id(&mut self, v: i64) {
         self.rev_id = v;
     }
+
+    // int64 base_rev_id = 4;
+
+
+    pub fn get_base_rev_id(&self) -> i64 {
+        self.base_rev_id
+    }
+    pub fn clear_base_rev_id(&mut self) {
+        self.base_rev_id = 0;
+    }
+
+    // Param is passed by value, moved
+    pub fn set_base_rev_id(&mut self, v: i64) {
+        self.base_rev_id = v;
+    }
 }
 
 impl ::protobuf::Message for Doc {
@@ -336,6 +352,13 @@ impl ::protobuf::Message for Doc {
                     let tmp = is.read_int64()?;
                     self.rev_id = tmp;
                 },
+                4 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_int64()?;
+                    self.base_rev_id = tmp;
+                },
                 _ => {
                     ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
                 },
@@ -357,6 +380,9 @@ impl ::protobuf::Message for Doc {
         if self.rev_id != 0 {
             my_size += ::protobuf::rt::value_size(3, self.rev_id, ::protobuf::wire_format::WireTypeVarint);
         }
+        if self.base_rev_id != 0 {
+            my_size += ::protobuf::rt::value_size(4, self.base_rev_id, ::protobuf::wire_format::WireTypeVarint);
+        }
         my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
         self.cached_size.set(my_size);
         my_size
@@ -372,6 +398,9 @@ impl ::protobuf::Message for Doc {
         if self.rev_id != 0 {
             os.write_int64(3, self.rev_id)?;
         }
+        if self.base_rev_id != 0 {
+            os.write_int64(4, self.base_rev_id)?;
+        }
         os.write_unknown_fields(self.get_unknown_fields())?;
         ::std::result::Result::Ok(())
     }
@@ -425,6 +454,11 @@ impl ::protobuf::Message for Doc {
                 |m: &Doc| { &m.rev_id },
                 |m: &mut Doc| { &mut m.rev_id },
             ));
+            fields.push(::protobuf::reflect::accessor::make_simple_field_accessor::<_, ::protobuf::types::ProtobufTypeInt64>(
+                "base_rev_id",
+                |m: &Doc| { &m.base_rev_id },
+                |m: &mut Doc| { &mut m.base_rev_id },
+            ));
             ::protobuf::reflect::MessageDescriptor::new_pb_name::<Doc>(
                 "Doc",
                 fields,
@@ -444,6 +478,7 @@ impl ::protobuf::Clear for Doc {
         self.id.clear();
         self.data.clear();
         self.rev_id = 0;
+        self.base_rev_id = 0;
         self.unknown_fields.clear();
     }
 }
@@ -1294,63 +1329,67 @@ impl ::protobuf::reflect::ProtobufValue for QueryDocParams {
 
 static file_descriptor_proto_data: &'static [u8] = b"\
     \n\tdoc.proto\"5\n\x0fCreateDocParams\x12\x0e\n\x02id\x18\x01\x20\x01(\t\
-    R\x02id\x12\x12\n\x04data\x18\x02\x20\x01(\tR\x04data\"@\n\x03Doc\x12\
+    R\x02id\x12\x12\n\x04data\x18\x02\x20\x01(\tR\x04data\"`\n\x03Doc\x12\
     \x0e\n\x02id\x18\x01\x20\x01(\tR\x02id\x12\x12\n\x04data\x18\x02\x20\x01\
-    (\tR\x04data\x12\x15\n\x06rev_id\x18\x03\x20\x01(\x03R\x05revId\"S\n\x0f\
-    UpdateDocParams\x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12\x12\
-    \n\x04data\x18\x02\x20\x01(\tR\x04data\x12\x15\n\x06rev_id\x18\x03\x20\
-    \x01(\x03R\x05revId\"5\n\x08DocDelta\x12\x15\n\x06doc_id\x18\x01\x20\x01\
-    (\tR\x05docId\x12\x12\n\x04data\x18\x02\x20\x01(\tR\x04data\"S\n\nNewDoc\
-    User\x12\x17\n\x07user_id\x18\x01\x20\x01(\tR\x06userId\x12\x15\n\x06rev\
-    _id\x18\x02\x20\x01(\x03R\x05revId\x12\x15\n\x06doc_id\x18\x03\x20\x01(\
-    \tR\x05docId\"'\n\x0eQueryDocParams\x12\x15\n\x06doc_id\x18\x01\x20\x01(\
-    \tR\x05docIdJ\xa4\x07\n\x06\x12\x04\0\0\x1b\x01\n\x08\n\x01\x0c\x12\x03\
-    \0\0\x12\n\n\n\x02\x04\0\x12\x04\x02\0\x05\x01\n\n\n\x03\x04\0\x01\x12\
-    \x03\x02\x08\x17\n\x0b\n\x04\x04\0\x02\0\x12\x03\x03\x04\x12\n\x0c\n\x05\
-    \x04\0\x02\0\x05\x12\x03\x03\x04\n\n\x0c\n\x05\x04\0\x02\0\x01\x12\x03\
-    \x03\x0b\r\n\x0c\n\x05\x04\0\x02\0\x03\x12\x03\x03\x10\x11\n\x0b\n\x04\
-    \x04\0\x02\x01\x12\x03\x04\x04\x14\n\x0c\n\x05\x04\0\x02\x01\x05\x12\x03\
-    \x04\x04\n\n\x0c\n\x05\x04\0\x02\x01\x01\x12\x03\x04\x0b\x0f\n\x0c\n\x05\
-    \x04\0\x02\x01\x03\x12\x03\x04\x12\x13\n\n\n\x02\x04\x01\x12\x04\x06\0\n\
-    \x01\n\n\n\x03\x04\x01\x01\x12\x03\x06\x08\x0b\n\x0b\n\x04\x04\x01\x02\0\
-    \x12\x03\x07\x04\x12\n\x0c\n\x05\x04\x01\x02\0\x05\x12\x03\x07\x04\n\n\
-    \x0c\n\x05\x04\x01\x02\0\x01\x12\x03\x07\x0b\r\n\x0c\n\x05\x04\x01\x02\0\
-    \x03\x12\x03\x07\x10\x11\n\x0b\n\x04\x04\x01\x02\x01\x12\x03\x08\x04\x14\
-    \n\x0c\n\x05\x04\x01\x02\x01\x05\x12\x03\x08\x04\n\n\x0c\n\x05\x04\x01\
-    \x02\x01\x01\x12\x03\x08\x0b\x0f\n\x0c\n\x05\x04\x01\x02\x01\x03\x12\x03\
-    \x08\x12\x13\n\x0b\n\x04\x04\x01\x02\x02\x12\x03\t\x04\x15\n\x0c\n\x05\
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-    \x02\0\x03\x12\x03\x1a\x14\x15b\x06proto3\
+    (\tR\x04data\x12\x15\n\x06rev_id\x18\x03\x20\x01(\x03R\x05revId\x12\x1e\
+    \n\x0bbase_rev_id\x18\x04\x20\x01(\x03R\tbaseRevId\"S\n\x0fUpdateDocPara\
+    ms\x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05docId\x12\x12\n\x04data\
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+    ocId\"'\n\x0eQueryDocParams\x12\x15\n\x06doc_id\x18\x01\x20\x01(\tR\x05d\
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+    \x01\x12\x03\x04\x04\x14\n\x0c\n\x05\x04\0\x02\x01\x05\x12\x03\x04\x04\n\
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+    \n\x05\x04\x05\x02\0\x05\x12\x03\x1b\x04\n\n\x0c\n\x05\x04\x05\x02\0\x01\
+    \x12\x03\x1b\x0b\x11\n\x0c\n\x05\x04\x05\x02\0\x03\x12\x03\x1b\x14\x15b\
+    \x06proto3\
 ";
 
 static file_descriptor_proto_lazy: ::protobuf::rt::LazyV2<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::rt::LazyV2::INIT;
diff --git a/rust-lib/flowy-document/src/protobuf/proto/doc.proto b/rust-lib/flowy-document/src/protobuf/proto/doc.proto
index 0270de7e2f..36851f4ab0 100644
--- a/rust-lib/flowy-document/src/protobuf/proto/doc.proto
+++ b/rust-lib/flowy-document/src/protobuf/proto/doc.proto
@@ -8,6 +8,7 @@ message Doc {
     string id = 1;
     string data = 2;
     int64 rev_id = 3;
+    int64 base_rev_id = 4;
 }
 message UpdateDocParams {
     string doc_id = 1;
diff --git a/rust-lib/flowy-document/src/services/doc/doc_controller.rs b/rust-lib/flowy-document/src/services/doc/doc_controller.rs
index 7608e63907..c320cf25a8 100644
--- a/rust-lib/flowy-document/src/services/doc/doc_controller.rs
+++ b/rust-lib/flowy-document/src/services/doc/doc_controller.rs
@@ -4,7 +4,7 @@ use bytes::Bytes;
 
 use crate::{
     entities::doc::{CreateDocParams, Doc, DocDelta, QueryDocParams},
-    errors::{internal_error, DocError, DocResult},
+    errors::{DocError, DocResult},
     module::DocumentUser,
     services::{
         cache::DocCache,
@@ -16,7 +16,7 @@ use crate::{
         ws::WsDocumentManager,
     },
 };
-use flowy_database::{ConnectionPool, SqliteConnection};
+use flowy_database::ConnectionPool;
 use flowy_infra::future::{wrap_future, FnFuture, ResultFuture};
 use flowy_ot::core::Delta;
 use tokio::time::{interval, Duration};
@@ -45,8 +45,8 @@ impl DocController {
         Ok(())
     }
 
-    #[tracing::instrument(skip(self, conn), err)]
-    pub(crate) fn create(&self, params: CreateDocParams, conn: &SqliteConnection) -> Result<(), DocError> {
+    #[tracing::instrument(skip(self), err)]
+    pub(crate) fn create(&self, params: CreateDocParams) -> Result<(), DocError> {
         // let _doc = Doc {
         //     id: params.id,
         //     data: params.data,
@@ -77,8 +77,8 @@ impl DocController {
         Ok(())
     }
 
-    #[tracing::instrument(level = "debug", skip(self, conn), err)]
-    pub(crate) fn delete(&self, params: QueryDocParams, conn: &SqliteConnection) -> Result<(), DocError> {
+    #[tracing::instrument(level = "debug", skip(self), err)]
+    pub(crate) fn delete(&self, params: QueryDocParams) -> Result<(), DocError> {
         let doc_id = &params.doc_id;
         self.cache.remove(doc_id);
         self.ws_manager.remove_handler(doc_id);
@@ -87,10 +87,10 @@ impl DocController {
     }
 
     #[tracing::instrument(level = "debug", skip(self, delta), err)]
-    pub(crate) async fn edit_doc(&self, delta: DocDelta) -> Result<Doc, DocError> {
+    pub(crate) async fn edit_doc(&self, delta: DocDelta) -> Result<DocDelta, DocError> {
         let edit_doc_ctx = self.cache.get(&delta.doc_id)?;
         let _ = edit_doc_ctx.compose_local_delta(Bytes::from(delta.data)).await?;
-        Ok(edit_doc_ctx.doc().await?)
+        Ok(edit_doc_ctx.delta().await?)
     }
 }
 
@@ -137,7 +137,7 @@ struct RevisionServerImpl {
 }
 
 impl RevisionServer for RevisionServerImpl {
-    fn fetch_document_from_remote(&self, doc_id: &str) -> ResultFuture<DocRevision, DocError> {
+    fn fetch_document_from_remote(&self, doc_id: &str) -> ResultFuture<Doc, DocError> {
         let params = QueryDocParams {
             doc_id: doc_id.to_string(),
         };
@@ -147,14 +147,7 @@ impl RevisionServer for RevisionServerImpl {
         ResultFuture::new(async move {
             match server.read_doc(&token, params).await? {
                 None => Err(DocError::not_found()),
-                Some(doc) => {
-                    let delta = Delta::from_bytes(doc.data)?;
-                    Ok(DocRevision {
-                        base_rev_id: 0.into(),
-                        rev_id: doc.rev_id.into(),
-                        delta,
-                    })
-                },
+                Some(doc) => Ok(doc),
             }
         })
     }
diff --git a/rust-lib/flowy-document/src/services/doc/edit/doc_actor.rs b/rust-lib/flowy-document/src/services/doc/edit/doc_actor.rs
index 246bdf2f7f..ca2ed96ec1 100644
--- a/rust-lib/flowy-document/src/services/doc/edit/doc_actor.rs
+++ b/rust-lib/flowy-document/src/services/doc/edit/doc_actor.rs
@@ -1,6 +1,6 @@
 use crate::{
     entities::doc::{RevId, Revision},
-    errors::{internal_error, DocResult},
+    errors::DocResult,
     services::doc::{
         edit::{
             message::{DocumentMsg, TransformDeltas},
diff --git a/rust-lib/flowy-document/src/services/doc/edit/edit_doc.rs b/rust-lib/flowy-document/src/services/doc/edit/edit_doc.rs
index b793ab056f..3c248eed5d 100644
--- a/rust-lib/flowy-document/src/services/doc/edit/edit_doc.rs
+++ b/rust-lib/flowy-document/src/services/doc/edit/edit_doc.rs
@@ -1,6 +1,6 @@
 use crate::{
     entities::{
-        doc::{Doc, RevId, RevType, Revision, RevisionRange},
+        doc::{Doc, DocDelta, RevId, RevType, Revision, RevisionRange},
         ws::{WsDataType, WsDocumentData},
     },
     errors::{internal_error, DocError, DocResult},
@@ -46,12 +46,9 @@ impl ClientEditDoc {
         user: Arc<dyn DocumentUser>,
     ) -> DocResult<Self> {
         let rev_store = spawn_rev_store_actor(doc_id, pool.clone(), server.clone());
-        let DocRevision {
-            base_rev_id: _,
-            rev_id,
-            delta,
-        } = load_document(rev_store.clone()).await?;
-        let rev_manager = Arc::new(RevisionManager::new(doc_id, rev_id, rev_store));
+        let doc = load_document(rev_store.clone()).await?;
+        let delta = doc.delta()?;
+        let rev_manager = Arc::new(RevisionManager::new(doc_id, doc.rev_id.into(), rev_store));
         let document = spawn_doc_edit_actor(doc_id, delta, pool.clone());
         let doc_id = doc_id.to_string();
         let edit_doc = Self {
@@ -142,15 +139,16 @@ impl ClientEditDoc {
         rx.await.map_err(internal_error)?
     }
 
-    pub async fn doc(&self) -> DocResult<Doc> {
+    pub async fn delta(&self) -> DocResult<DocDelta> {
         let (ret, rx) = oneshot::channel::<DocResult<String>>();
         let msg = DocumentMsg::Doc { ret };
         let _ = self.document.send(msg);
         let data = rx.await.map_err(internal_error)??;
-        let rev_id = self.rev_manager.rev_id();
-        let id = self.doc_id.clone();
 
-        Ok(Doc { id, data, rev_id })
+        Ok(DocDelta {
+            doc_id: self.doc_id.clone(),
+            data,
+        })
     }
 
     async fn mk_revision(&self, delta_data: &Bytes) -> Result<RevId, DocError> {
@@ -229,7 +227,7 @@ impl ClientEditDoc {
         let _ = rx.await.map_err(internal_error)??;
 
         // update rev id
-        self.rev_manager.update_rev_id(server_rev_id.clone().into());
+        self.rev_manager.set_rev_id(server_rev_id.clone().into());
         let (_, local_rev_id) = self.rev_manager.next_rev_id();
 
         // save the revision
@@ -327,7 +325,7 @@ fn spawn_doc_edit_actor(doc_id: &str, delta: Delta, pool: Arc<ConnectionPool>) -
     sender
 }
 
-async fn load_document(sender: mpsc::Sender<RevisionCmd>) -> DocResult<DocRevision> {
+async fn load_document(sender: mpsc::Sender<RevisionCmd>) -> DocResult<Doc> {
     let (ret, rx) = oneshot::channel();
     let _ = sender.send(RevisionCmd::DocumentDelta { ret }).await;
     let result = rx.await.map_err(internal_error)?;
diff --git a/rust-lib/flowy-document/src/services/doc/revision/manager.rs b/rust-lib/flowy-document/src/services/doc/revision/manager.rs
index 89969b19a5..a28ca7d19d 100644
--- a/rust-lib/flowy-document/src/services/doc/revision/manager.rs
+++ b/rust-lib/flowy-document/src/services/doc/revision/manager.rs
@@ -1,5 +1,5 @@
 use crate::{
-    entities::doc::{RevId, RevType, Revision, RevisionRange},
+    entities::doc::{Doc, RevId, RevType, Revision, RevisionRange},
     errors::{internal_error, DocError},
     services::{doc::revision::store_actor::RevisionCmd, util::RevIdCounter, ws::DocumentWebSocket},
 };
@@ -14,7 +14,7 @@ pub struct DocRevision {
 }
 
 pub trait RevisionServer: Send + Sync {
-    fn fetch_document_from_remote(&self, doc_id: &str) -> ResultFuture<DocRevision, DocError>;
+    fn fetch_document_from_remote(&self, doc_id: &str) -> ResultFuture<Doc, DocError>;
 }
 
 pub struct RevisionManager {
@@ -60,7 +60,7 @@ impl RevisionManager {
         (cur, next)
     }
 
-    pub fn update_rev_id(&self, rev_id: i64) { self.rev_id_counter.set(rev_id); }
+    pub fn set_rev_id(&self, rev_id: i64) { self.rev_id_counter.set(rev_id); }
 
     pub async fn construct_revisions(&self, range: RevisionRange) -> Result<Revision, DocError> {
         debug_assert!(&range.doc_id == &self.doc_id);
diff --git a/rust-lib/flowy-document/src/services/doc/revision/store_actor.rs b/rust-lib/flowy-document/src/services/doc/revision/store_actor.rs
index e54b14e4f1..7bb4593673 100644
--- a/rust-lib/flowy-document/src/services/doc/revision/store_actor.rs
+++ b/rust-lib/flowy-document/src/services/doc/revision/store_actor.rs
@@ -1,5 +1,5 @@
 use crate::{
-    entities::doc::{RevId, RevType, Revision, RevisionRange},
+    entities::doc::{revision_from_doc, Doc, RevId, RevType, Revision, RevisionRange},
     errors::{internal_error, DocError, DocResult},
     services::doc::revision::{model::RevisionOperation, DocRevision, RevisionServer},
     sql_tables::{RevState, RevTableSql},
@@ -28,7 +28,7 @@ pub enum RevisionCmd {
         ret: oneshot::Sender<DocResult<Vec<Revision>>>,
     },
     DocumentDelta {
-        ret: oneshot::Sender<DocResult<DocRevision>>,
+        ret: oneshot::Sender<DocResult<Doc>>,
     },
 }
 
@@ -181,35 +181,22 @@ impl RevisionStoreActor {
         }
     }
 
-    async fn fetch_document(&self) -> DocResult<DocRevision> {
+    async fn fetch_document(&self) -> DocResult<Doc> {
         let result = fetch_from_local(&self.doc_id, self.persistence.clone()).await;
         if result.is_ok() {
             return result;
         }
 
-        match self.server.fetch_document_from_remote(&self.doc_id).await {
-            Ok(doc_revision) => {
-                let delta_data = doc_revision.delta.to_bytes();
-                let revision = Revision::new(
-                    doc_revision.base_rev_id.clone(),
-                    doc_revision.rev_id.clone(),
-                    delta_data.to_vec(),
-                    &self.doc_id,
-                    RevType::Remote,
-                );
-                self.handle_new_revision(revision);
-
-                Ok(doc_revision)
-            },
-            Err(e) => Err(e),
-        }
+        let doc = self.server.fetch_document_from_remote(&self.doc_id).await?;
+        let revision = revision_from_doc(doc.clone(), RevType::Remote);
+        self.handle_new_revision(revision);
+        Ok(doc)
     }
 }
 
-async fn fetch_from_local(doc_id: &str, persistence: Arc<Persistence>) -> DocResult<DocRevision> {
+async fn fetch_from_local(doc_id: &str, persistence: Arc<Persistence>) -> DocResult<Doc> {
     let doc_id = doc_id.to_owned();
     spawn_blocking(move || {
-        // tokio::time::timeout
         let conn = &*persistence.pool.get().map_err(internal_error)?;
         let revisions = persistence.rev_sql.read_rev_tables(&doc_id, None, conn)?;
         if revisions.is_empty() {
@@ -230,12 +217,11 @@ async fn fetch_from_local(doc_id: &str, persistence: Arc<Persistence>) -> DocRes
             }
         }
 
-        delta.insert("\n", Attributes::default());
-
-        Result::<DocRevision, DocError>::Ok(DocRevision {
-            base_rev_id,
-            rev_id,
-            delta,
+        Result::<Doc, DocError>::Ok(Doc {
+            id: doc_id,
+            data: delta.to_json(),
+            rev_id: rev_id.into(),
+            base_rev_id: base_rev_id.into(),
         })
     })
     .await
diff --git a/rust-lib/flowy-workspace/src/event.rs b/rust-lib/flowy-workspace/src/event.rs
index 4522ddfdfe..3a9d5a6b76 100644
--- a/rust-lib/flowy-workspace/src/event.rs
+++ b/rust-lib/flowy-workspace/src/event.rs
@@ -46,10 +46,10 @@ pub enum WorkspaceEvent {
     #[event(input = "DeleteViewRequest")]
     DeleteView        = 204,
 
-    #[event(input = "OpenViewRequest", output = "Doc")]
+    #[event(input = "OpenViewRequest", output = "DocDelta")]
     OpenView          = 205,
 
-    #[event(input = "DocDelta", output = "Doc")]
+    #[event(input = "DocDelta", output = "DocDelta")]
     ApplyDocDelta     = 206,
 
     #[event()]
diff --git a/rust-lib/flowy-workspace/src/handlers/view_handler.rs b/rust-lib/flowy-workspace/src/handlers/view_handler.rs
index d4ac36846d..4cf42fa977 100644
--- a/rust-lib/flowy-workspace/src/handlers/view_handler.rs
+++ b/rust-lib/flowy-workspace/src/handlers/view_handler.rs
@@ -15,7 +15,7 @@ use crate::{
     services::ViewController,
 };
 use flowy_dispatch::prelude::{data_result, Data, DataResult, Unit};
-use flowy_document::entities::doc::{Doc, DocDelta, QueryDocParams};
+use flowy_document::entities::doc::{DocDelta, QueryDocParams};
 use std::{convert::TryInto, sync::Arc};
 
 #[tracing::instrument(skip(data, controller), err)]
@@ -58,7 +58,7 @@ pub(crate) async fn update_view_handler(
 pub(crate) async fn apply_doc_delta_handler(
     data: Data<DocDelta>,
     controller: Unit<Arc<ViewController>>,
-) -> DataResult<Doc, WorkspaceError> {
+) -> DataResult<DocDelta, WorkspaceError> {
     // let params: DocDelta = data.into_inner().try_into()?;
     let doc = controller.apply_doc_delta(data.into_inner()).await?;
     data_result(doc)
@@ -78,7 +78,7 @@ pub(crate) async fn delete_view_handler(
 pub(crate) async fn open_view_handler(
     data: Data<OpenViewRequest>,
     controller: Unit<Arc<ViewController>>,
-) -> DataResult<Doc, WorkspaceError> {
+) -> DataResult<DocDelta, WorkspaceError> {
     let params: QueryDocParams = data.into_inner().try_into()?;
     let doc = controller.open_view(params).await?;
     data_result(doc)
diff --git a/rust-lib/flowy-workspace/src/services/view_controller.rs b/rust-lib/flowy-workspace/src/services/view_controller.rs
index 7ed43b0ce1..0c6703e332 100644
--- a/rust-lib/flowy-workspace/src/services/view_controller.rs
+++ b/rust-lib/flowy-workspace/src/services/view_controller.rs
@@ -15,7 +15,7 @@ use crate::{
 };
 use flowy_database::SqliteConnection;
 use flowy_document::{
-    entities::doc::{CreateDocParams, Doc, DocDelta, QueryDocParams},
+    entities::doc::{CreateDocParams, DocDelta, QueryDocParams},
     module::FlowyDocument,
 };
 use std::sync::Arc;
@@ -56,8 +56,7 @@ impl ViewController {
         // TODO: rollback anything created before if failed?
         conn.immediate_transaction::<_, WorkspaceError, _>(|| {
             let _ = self.save_view(view.clone(), conn)?;
-            self.document
-                .create(CreateDocParams::new(&view.id, params.data), conn)?;
+            self.document.create(CreateDocParams::new(&view.id, params.data))?;
 
             let repeated_view = self.read_local_views_belong_to(&view.belong_to_id, conn)?;
             dart_notify(&view.belong_to_id, WorkspaceObservable::AppCreateView)
@@ -84,9 +83,9 @@ impl ViewController {
     }
 
     #[tracing::instrument(level = "debug", skip(self), err)]
-    pub(crate) async fn open_view(&self, params: QueryDocParams) -> Result<Doc, WorkspaceError> {
+    pub(crate) async fn open_view(&self, params: QueryDocParams) -> Result<DocDelta, WorkspaceError> {
         let edit_context = self.document.open(params, self.database.db_pool()?).await?;
-        Ok(edit_context.doc().await.map_err(internal_error)?)
+        Ok(edit_context.delta().await.map_err(internal_error)?)
     }
 
     pub(crate) async fn delete_view(&self, params: DeleteViewParams) -> Result<(), WorkspaceError> {
@@ -95,7 +94,7 @@ impl ViewController {
 
         conn.immediate_transaction::<_, WorkspaceError, _>(|| {
             let view_table = self.sql.delete_view(&params.view_id, conn)?;
-            let _ = self.document.delete(params.into(), conn)?;
+            let _ = self.document.delete(params.into())?;
 
             let repeated_view = self.read_local_views_belong_to(&view_table.belong_to_id, conn)?;
             dart_notify(&view_table.belong_to_id, WorkspaceObservable::AppDeleteView)
@@ -134,7 +133,7 @@ impl ViewController {
         Ok(())
     }
 
-    pub(crate) async fn apply_doc_delta(&self, params: DocDelta) -> Result<Doc, WorkspaceError> {
+    pub(crate) async fn apply_doc_delta(&self, params: DocDelta) -> Result<DocDelta, WorkspaceError> {
         let doc = self.document.apply_doc_delta(params).await?;
         Ok(doc)
     }
diff --git a/rust-lib/flowy-ws/src/ws.rs b/rust-lib/flowy-ws/src/ws.rs
index b16e8e40c1..1020186281 100644
--- a/rust-lib/flowy-ws/src/ws.rs
+++ b/rust-lib/flowy-ws/src/ws.rs
@@ -6,7 +6,7 @@ use crate::{
 };
 use bytes::Bytes;
 use dashmap::DashMap;
-use flowy_infra::retry::{Action, ExponentialBackoff, FixedInterval, Retry};
+use flowy_infra::retry::{Action, FixedInterval, Retry};
 use flowy_net::errors::ServerError;
 use futures_channel::mpsc::{UnboundedReceiver, UnboundedSender};
 use futures_core::{ready, Stream};
diff --git a/scripts/makefile/docker.toml b/scripts/makefile/docker.toml
new file mode 100644
index 0000000000..7b03a6701a
--- /dev/null
+++ b/scripts/makefile/docker.toml
@@ -0,0 +1,10 @@
+[tasks.show_usage]
+script = """
+docker system df -v
+# docker volume rm xxxxx
+docker volume prune
+"""
+
+#docker container ls -al
+#docker stop clever_mayer
+#docker rm clever_mayer
\ No newline at end of file