text: # coding=utf-8
  # Copyright 2018-2020 EVA
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  from enum import unique, IntEnum
  
  
  @unique
  class PlanNodeType(IntEnum):
      SEQUENTIAL_SCAN = 1
      STORAGE_PLAN = 2
      PP_FILTER = 3
      INSERT = 4
      CREATE = 5
      CREATE_UDF = 6
      LOAD_DATA = 7
      UNION = 8
      ORDER_BY = 9
      LIMIT = 10
      # add other types
  