diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index a83c9b4..bb9cf93 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -383,6 +383,7 @@ class PluginTable(owui_Base):
     """Plugin storage table - inherits from OpenWebUI's Base"""
 
     __tablename__ = "plugin_table_name"
+    __table_args__ = {"extend_existing": True}  # Required to avoid conflicts on plugin reload
 
     id = Column(Integer, primary_key=True, autoincrement=True)
     unique_id = Column(String(255), unique=True, nullable=False, index=True)
diff --git a/plugins/filters/async-context-compression/async_context_compression.py b/plugins/filters/async-context-compression/async_context_compression.py
index 7207ddb..ac4f47d 100644
--- a/plugins/filters/async-context-compression/async_context_compression.py
+++ b/plugins/filters/async-context-compression/async_context_compression.py
@@ -271,6 +271,7 @@ class ChatSummary(owui_Base):
     """Chat Summary Storage Table"""
 
     __tablename__ = "chat_summary"
+    __table_args__ = {"extend_existing": True}
 
     id = Column(Integer, primary_key=True, autoincrement=True)
     chat_id = Column(String(255), unique=True, nullable=False, index=True)
diff --git a/plugins/filters/async-context-compression/异步上下文压缩.py b/plugins/filters/async-context-compression/异步上下文压缩.py
index 673edc5..7aa97c4 100644
--- a/plugins/filters/async-context-compression/异步上下文压缩.py
+++ b/plugins/filters/async-context-compression/异步上下文压缩.py
@@ -270,6 +270,7 @@ class ChatSummary(owui_Base):
     """对话摘要存储表"""
 
     __tablename__ = "chat_summary"
+    __table_args__ = {"extend_existing": True}
 
     id = Column(Integer, primary_key=True, autoincrement=True)
     chat_id = Column(String(255), unique=True, nullable=False, index=True)