fix: ops trace slow db (#5812)

api/core/ops/langfuse_trace/langfuse_trace.py

@@ -109,7 +109,6 @@ class LangFuseDataTrace(BaseTraceInstance):
         workflow_nodes_executions = (
             db.session.query(WorkflowNodeExecution)
             .filter(WorkflowNodeExecution.workflow_run_id == trace_info.workflow_run_id)
-            .order_by(WorkflowNodeExecution.index.desc())
             .all()
         )
 

api/core/ops/langsmith_trace/langsmith_trace.py

@@ -102,7 +102,6 @@ class LangSmithDataTrace(BaseTraceInstance):
         workflow_nodes_executions = (
             db.session.query(WorkflowNodeExecution)
             .filter(WorkflowNodeExecution.workflow_run_id == trace_info.workflow_run_id)
-            .order_by(WorkflowNodeExecution.index.desc())
             .all()
         )