text: #coding:utf-8
  #
  # id:           bugs.core_4498
  # title:        FB 3.0 crashes when getting an explained plan for a DBKEY based retrieval
  # decription:   
  # tracker_id:   CORE-4498
  # min_versions: ['3.0']
  # versions:     3.0
  # qmid:         None
  
  import pytest
  from firebird.qa import db_factory, isql_act, Action
  
  # version: 3.0
  # resources: None
  
  substitutions_1 = []
  
  init_script_1 = """"""
  
  db_1 = db_factory(page_size=4096, sql_dialect=3, init=init_script_1)
  
  test_script_1 = """
    out nul;
    set explain;
    select 1 from rdb$relations where rdb$db_key = cast('1234' as char(8) character set octets); 
  """
  
  act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
  
  expected_stdout_1 = """
    Select Expression
          -> Filter
              -> Table "RDB$RELATIONS" Access By ID
                  -> DBKEY
  """
  
  @pytest.mark.version('>=3.0')
  def test_1(act_1: Action):
      act_1.expected_stdout = expected_stdout_1
      act_1.execute()
      assert act_1.clean_stdout == act_1.clean_expected_stdout
  
  