diff --git a/database/models.py b/database/models.py
index 8e41bca..3bb7ecb 100644
--- a/database/models.py
+++ b/database/models.py
@@ -161,12 +161,12 @@ class DyCreator(Base):
 class KuaishouVideo(Base):
     __tablename__ = 'kuaishou_video'
     id = Column(Integer, primary_key=True)
-    user_id = Column(String(255))
+    user_id = Column(BigInteger)
     nickname = Column(Text)
     avatar = Column(Text)
     add_ts = Column(BigInteger)
     last_modify_ts = Column(BigInteger)
-    video_id = Column(BigInteger, index=True)
+    video_id = Column(String(255), index=True)
     video_type = Column(Text)
     title = Column(Text)
     desc = Column(Text)
@@ -181,13 +181,13 @@ class KuaishouVideo(Base):
 class KuaishouVideoComment(Base):
     __tablename__ = 'kuaishou_video_comment'
     id = Column(Integer, primary_key=True)
-    user_id = Column(Integer)
+    user_id = Column(Text)
     nickname = Column(Text)
     avatar = Column(Text)
     add_ts = Column(BigInteger)
     last_modify_ts = Column(BigInteger)
     comment_id = Column(BigInteger, index=True)
-    video_id = Column(BigInteger, index=True)
+    video_id = Column(String(255), index=True)
     content = Column(Text)
     create_time = Column(BigInteger)
     sub_comment_count = Column(Text)
@@ -206,7 +206,7 @@ class WeiboNote(Base):
     note_id = Column(BigInteger, index=True)
     content = Column(Text)
     create_time = Column(BigInteger, index=True)
-    create_date_time = Column(BigInteger, index=True)
+    create_date_time = Column(String(255), index=True)
     liked_count = Column(Text)
     comments_count = Column(Text)
     shared_count = Column(Text)
@@ -228,7 +228,7 @@ class WeiboNoteComment(Base):
     note_id = Column(BigInteger, index=True)
     content = Column(Text)
     create_time = Column(BigInteger)
-    create_date_time = Column(BigInteger, index=True)
+    create_date_time = Column(String(255), index=True)
     comment_like_count = Column(Text)
     sub_comment_count = Column(Text)
     parent_comment_id = Column(String(255))
@@ -273,7 +273,7 @@ class XhsNote(Base):
     ip_location = Column(Text)
     add_ts = Column(BigInteger)
     last_modify_ts = Column(BigInteger)
-    note_id = Column(BigInteger, index=True)
+    note_id = Column(String(255), index=True)
     type = Column(Text)
     title = Column(Text)
     desc = Column(Text)
@@ -299,7 +299,7 @@ class XhsNoteComment(Base):
     ip_location = Column(Text)
     add_ts = Column(BigInteger)
     last_modify_ts = Column(BigInteger)
-    comment_id = Column(BigInteger, index=True)
+    comment_id = Column(String(255), index=True)
     create_time = Column(BigInteger, index=True)
     note_id = Column(String(255))
     content = Column(Text)
@@ -311,15 +311,15 @@ class XhsNoteComment(Base):
 class TiebaNote(Base):
     __tablename__ = 'tieba_note'
     id = Column(Integer, primary_key=True)
-    note_id = Column(BigInteger, index=True)
+    note_id = Column(String(644), index=True)
     title = Column(Text)
     desc = Column(Text)
     note_url = Column(Text)
-    publish_time = Column(BigInteger, index=True)
+    publish_time = Column(String(255), index=True)
     user_link = Column(Text, default='')
     user_nickname = Column(Text, default='')
     user_avatar = Column(Text, default='')
-    tieba_id = Column(Integer, default='')
+    tieba_id = Column(String(255), default='')
     tieba_name = Column(Text)
     tieba_link = Column(Text)
     total_replay_num = Column(Integer, default=0)
@@ -332,7 +332,7 @@ class TiebaNote(Base):
 class TiebaComment(Base):
     __tablename__ = 'tieba_comment'
     id = Column(Integer, primary_key=True)
-    comment_id = Column(BigInteger, index=True)
+    comment_id = Column(String(255), index=True)
     parent_comment_id = Column(String(255), default='')
     content = Column(Text)
     user_link = Column(Text, default='')
@@ -341,10 +341,10 @@ class TiebaComment(Base):
     tieba_id = Column(String(255), default='')
     tieba_name = Column(Text)
     tieba_link = Column(Text)
-    publish_time = Column(BigInteger, index=True)
+    publish_time = Column(String(255), index=True)
     ip_location = Column(Text, default='')
     sub_comment_count = Column(Integer, default=0)
-    note_id = Column(BigInteger, index=True)
+    note_id = Column(String(255), index=True)
     note_url = Column(Text)
     add_ts = Column(BigInteger)
     last_modify_ts = Column(BigInteger)
@@ -352,7 +352,7 @@ class TiebaComment(Base):
 class TiebaCreator(Base):
     __tablename__ = 'tieba_creator'
     id = Column(Integer, primary_key=True)
-    user_id = Column(String(255))
+    user_id = Column(String(64))
     user_name = Column(Text)
     nickname = Column(Text)
     avatar = Column(Text)
@@ -367,14 +367,14 @@ class TiebaCreator(Base):
 class ZhihuContent(Base):
     __tablename__ = 'zhihu_content'
     id = Column(Integer, primary_key=True)
-    content_id = Column(BigInteger, index=True)
+    content_id = Column(String(64), index=True)
     content_type = Column(Text)
     content_text = Column(Text)
     content_url = Column(Text)
     question_id = Column(String(255))
     title = Column(Text)
     desc = Column(Text)
-    created_time = Column(BigInteger, index=True)
+    created_time = Column(String(32), index=True)
     updated_time = Column(Text)
     voteup_count = Column(Integer, default=0)
     comment_count = Column(Integer, default=0)
@@ -395,17 +395,17 @@ class ZhihuContent(Base):
 class ZhihuComment(Base):
     __tablename__ = 'zhihu_comment'
     id = Column(Integer, primary_key=True)
-    comment_id = Column(BigInteger, index=True)
-    parent_comment_id = Column(String(255))
+    comment_id = Column(String(64), index=True)
+    parent_comment_id = Column(String(64))
     content = Column(Text)
-    publish_time = Column(BigInteger, index=True)
+    publish_time = Column(String(32), index=True)
     ip_location = Column(Text)
     sub_comment_count = Column(Integer, default=0)
     like_count = Column(Integer, default=0)
     dislike_count = Column(Integer, default=0)
-    content_id = Column(BigInteger, index=True)
+    content_id = Column(String(64), index=True)
     content_type = Column(Text)
-    user_id = Column(String(255))
+    user_id = Column(String(64))
     user_link = Column(Text)
     user_nickname = Column(Text)
     user_avatar = Column(Text)
@@ -415,7 +415,7 @@ class ZhihuComment(Base):
 class ZhihuCreator(Base):
     __tablename__ = 'zhihu_creator'
     id = Column(Integer, primary_key=True)
-    user_id = Column(Integer, unique=True, index=True)
+    user_id = Column(String(64), unique=True, index=True)
     user_link = Column(Text)
     user_nickname = Column(Text)
     user_avatar = Column(Text)
diff --git a/database/sqlite_tables.db b/database/sqlite_tables.db
index 0da1bfa..07e4137 100644
Binary files a/database/sqlite_tables.db and b/database/sqlite_tables.db differ
diff --git a/store/xhs/_store_impl.py b/store/xhs/_store_impl.py
index 9985900..2dbfcdd 100644
--- a/store/xhs/_store_impl.py
+++ b/store/xhs/_store_impl.py
@@ -143,18 +143,17 @@ class XhsDbStoreImplement(AbstractStore):
         result = await session.execute(stmt)
         return result.first() is not None
 
-    async def store_comments(self, comments: List[Dict]):
-        if not comments:
+    async def store_comment(self, comment_item: Dict):
+        if not comment_item:
             return
         async with get_session() as session:
-            for comment_item in comments:
-                comment_id = comment_item.get("comment_id")
-                if not comment_id:
-                    continue
-                if await self.comment_is_exist(session, comment_id):
-                    await self.update_comment(session, comment_item)
-                else:
-                    await self.add_comment(session, comment_item)
+            comment_id = comment_item.get("comment_id")
+            if not comment_id:
+                return
+            if await self.comment_is_exist(session, comment_id):
+                await self.update_comment(session, comment_item)
+            else:
+                await self.add_comment(session, comment_item)
 
     async def add_comment(self, session: AsyncSession, comment_item: Dict):
         add_ts = int(get_current_timestamp())