fix(knowledge API): Unique Constraint Issue with create_space API Cau… (

#1794)

Co-authored-by: aries_ckt <[email protected]>

dbgpt/serve/rag/service/service.py

@@ -123,7 +123,10 @@ def create_space(self, request: SpaceServeRequest) -> SpaceServeResponse:
         Returns:
             SpaceServeResponse: The response
         """
-        space = self.get(request)
+        query = {
+            "name": request.name
+        }
+        space = self.get(query)
         if space is not None:
             raise HTTPException(
                 status_code=400,