text: DROP TABLE IF EXISTS mt;
  
  CREATE TABLE mt (v UInt8) ENGINE = MergeTree() order by tuple();
  SYSTEM STOP MERGES;
  
  INSERT INTO mt VALUES (0);
  INSERT INTO mt VALUES (1);
  INSERT INTO mt VALUES (2);
  
  SELECT v FROM mt ORDER BY v;
  
  ALTER TABLE mt DETACH PART 'all_100_100_0'; -- { serverError 232 }
  
  ALTER TABLE mt DETACH PART 'all_2_2_0';
  
  SELECT v FROM mt ORDER BY v;
  
  SELECT name FROM system.detached_parts WHERE table = 'mt';
  
  ALTER TABLE mt ATTACH PART 'all_2_2_0';
  
  SELECT v FROM mt ORDER BY v;
  
  SELECT name FROM system.detached_parts WHERE table = 'mt';
  
  SELECT '-- drop part --';
  
  ALTER TABLE mt DROP PART 'all_4_4_0';
  
  ALTER TABLE mt ATTACH PART 'all_4_4_0'; -- { serverError 233 }
  
  SELECT v FROM mt ORDER BY v;
  
  SELECT '-- resume merges --';
  SYSTEM START MERGES;
  OPTIMIZE TABLE mt FINAL;
  
  SELECT v FROM mt ORDER BY v;
  
  SELECT name FROM system.parts WHERE table = 'mt' AND active;
  
  DROP TABLE mt;
  