[Bug] [Chat DB] 配置TuGraph后，ChatDB 无应答显示'list_iterator' object is not subscriptable

[AlexanderGPY]

Search before asking

• I had searched in the issues and found no similar issues.

Operating system information

Linux

Python version information

=3.11

DB-GPT version

main

Related scenes

• Chat Data
• Chat Excel
• Chat DB
• Chat Knowledge
• Model Management
• Dashboard
• Plugins

Installation Information

• Installation From Source

• Docker Installation

• Docker Compose Installation

• Cluster Installation

• AutoDL Image

• Other

Device information

CPU

Models information

QWen32B

What happened

集成TuGraph后，引入模版图谱TheThreeBody_022F，进行ChatDB时报错：

再进入到配置TuGraph界面，点击刷新，依然报错：

What you expected to happen

nothing

How to reproduce

1、添加TuGraph
2、刷新TuGraph
3、ChatDB选择该数据库，然后任意聊天

Additional context

日志信息：
2025-03-14 17:26:16 rocky9.0-2 dbgpt_serve.core.schemas[19397] ERROR common_exception_handler catch Exception: success=False err_code='E0003' err_msg="'list_iterator' object is not subscriptable" data=None
INFO: 10.36.196.238:62098 - "POST /api/v2/serve/datasources/1/refresh HTTP/1.1" 400 Bad Request
ERROR: Exception in ASGI application

• Exception Group Traceback (most recent call last):
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_utils.py", line 77, in collapse_excgroups
  | yield
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 186, in call
  | async with anyio.create_task_group() as task_group:
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/anyio/_backends/_asyncio.py", line 767, in aexit
  | raise BaseExceptionGroup(
  | ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
  +-+---------------- 1 ----------------
  | Traceback (most recent call last):
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/uvicorn/protocols/http/httptools_impl.py", line 409, in run_asgi
  | result = await app( # type: ignore[func-returns-value]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in call
  | return await self.app(scope, receive, send)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 93, in call
  | await self.simple_response(scope, receive, send, request_headers=headers)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 144, in simple_response
  | await self.app(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/fastapi/applications.py", line 1054, in call
  | await super().call(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/applications.py", line 113, in call
  | await self.middleware_stack(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 187, in call
  | raise exc
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 165, in call
  | await self.app(scope, receive, _send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 185, in call
  | with collapse_excgroups():
  | File "/root/miniconda3/envs/dbgpt/lib/python3.11/contextlib.py", line 158, in exit
  | self.gen.throw(typ, value, traceback)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_utils.py", line 83, in collapse_excgroups
  | raise exc
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 187, in call
  | response = await self.dispatch_func(request, call_next)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-core/src/dbgpt/util/tracer/tracer_middleware.py", line 49, in dispatch
  | response = await call_next(request)
  | ^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 163, in call_next
  | raise app_exc
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 149, in coro
  | await self.app(scope, receive_or_disconnect, send_no_error)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/exceptions.py", line 62, in call
  | await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
  | raise exc
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
  | await app(scope, receive, sender)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 715, in call
  | await self.middleware_stack(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 735, in app
  | await route.handle(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 288, in handle
  | await self.app(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 76, in app
  | await wrap_app_handling_exceptions(app, request)(scope, receive, send)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
  | raise exc
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
  | await app(scope, receive, sender)
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 73, in app
  | response = await f(request)
  | ^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 301, in app
  | raw_response = await run_endpoint_function(
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 212, in run_endpoint_function
  | return await dependant.call(**values)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/api/endpoints.py", line 259, in refresh_datasource
  | res = await blocking_func_to_async(
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/core/init.py", line 32, in blocking_func_to_async
  | return await _blocking_func_to_async(executor, func, *args, **kwargs)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-core/src/dbgpt/util/executor_utils.py", line 70, in blocking_func_to_async
  | return await loop.run_in_executor(executor, run_with_context)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/miniconda3/envs/dbgpt/lib/python3.11/concurrent/futures/thread.py", line 58, in run
  | result = self.fn(*self.args, **self.kwargs)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-core/src/dbgpt/util/executor_utils.py", line 67, in run_with_context
  | return ctx.run(partial(func, *args, **kwargs))
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/service/service.py", line 310, in refresh
  | self._db_summary_client.db_summary_embedding(
  | File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/service/db_summary_client.py", line 50, in db_summary_embedding
  | db_summary_client = self.create_summary_client(dbname, db_type)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/service/db_summary_client.py", line 154, in create_summary_client
  | return GdbmsSummary(dbname, db_type)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  | File "/root/guopengye/DB-GPT/packages/dbgpt-ext/src/dbgpt_ext/rag/summary/gdbms_db_summary.py", line 48, in init
  | for table_name in tables["vertex_tables"]
  | ~~~~~~^^^^^^^^^^^^^^^^^
  | TypeError: 'list_iterator' object is not subscriptable
  +------------------------------------

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/uvicorn/protocols/http/httptools_impl.py", line 409, in run_asgi
result = await app( # type: ignore[func-returns-value]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/uvicorn/middleware/proxy_headers.py", line 60, in call
return await self.app(scope, receive, send)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 93, in call
await self.simple_response(scope, receive, send, request_headers=headers)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/cors.py", line 144, in simple_response
await self.app(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/fastapi/applications.py", line 1054, in call
await super().call(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/applications.py", line 113, in call
await self.middleware_stack(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 187, in call
raise exc
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/errors.py", line 165, in call
await self.app(scope, receive, _send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 185, in call
with collapse_excgroups():
File "/root/miniconda3/envs/dbgpt/lib/python3.11/contextlib.py", line 158, in exit
self.gen.throw(typ, value, traceback)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_utils.py", line 83, in collapse_excgroups
raise exc
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 187, in call
response = await self.dispatch_func(request, call_next)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-core/src/dbgpt/util/tracer/tracer_middleware.py", line 49, in dispatch
response = await call_next(request)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 163, in call_next
raise app_exc
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/base.py", line 149, in coro
await self.app(scope, receive_or_disconnect, send_no_error)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/middleware/exceptions.py", line 62, in call
await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
raise exc
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
await app(scope, receive, sender)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 715, in call
await self.middleware_stack(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 735, in app
await route.handle(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 288, in handle
await self.app(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 76, in app
await wrap_app_handling_exceptions(app, request)(scope, receive, send)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 62, in wrapped_app
raise exc
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/_exception_handler.py", line 51, in wrapped_app
await app(scope, receive, sender)
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/starlette/routing.py", line 73, in app
response = await f(request)
^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 301, in app
raw_response = await run_endpoint_function(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/.venv/lib/python3.11/site-packages/fastapi/routing.py", line 212, in run_endpoint_function
return await dependant.call(**values)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/api/endpoints.py", line 259, in refresh_datasource
res = await blocking_func_to_async(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/core/init.py", line 32, in blocking_func_to_async
return await _blocking_func_to_async(executor, func, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-core/src/dbgpt/util/executor_utils.py", line 70, in blocking_func_to_async
return await loop.run_in_executor(executor, run_with_context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/miniconda3/envs/dbgpt/lib/python3.11/concurrent/futures/thread.py", line 58, in run
result = self.fn(*self.args, **self.kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-core/src/dbgpt/util/executor_utils.py", line 67, in run_with_context
return ctx.run(partial(func, *args, **kwargs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/service/service.py", line 310, in refresh
self._db_summary_client.db_summary_embedding(
File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/service/db_summary_client.py", line 50, in db_summary_embedding
db_summary_client = self.create_summary_client(dbname, db_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-serve/src/dbgpt_serve/datasource/service/db_summary_client.py", line 154, in create_summary_client
return GdbmsSummary(dbname, db_type)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/guopengye/DB-GPT/packages/dbgpt-ext/src/dbgpt_ext/rag/summary/gdbms_db_summary.py", line 48, in init
for table_name in tables["vertex_tables"]
~~~~~~^^^^^^^^^^^^^^^^^
TypeError: 'list_iterator' object is not subscriptable

Are you willing to submit PR?

• Yes I am willing to submit a PR!