text: ----- Group of very similar simple tests ------
  select '----HORIZONTAL MERGE TESTS----';
  DROP TABLE IF EXISTS zero_rows_per_granule1;
  DROP TABLE IF EXISTS zero_rows_per_granule2;
  
  CREATE TABLE zero_rows_per_granule1 (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE ReplicatedMergeTree('/clickhouse/tables/test_00926/zero_rows_in_granule', '1') PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 20, write_final_mark = 0;
  
  CREATE TABLE zero_rows_per_granule2 (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE ReplicatedMergeTree('/clickhouse/tables/test_00926/zero_rows_in_granule', '2') PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 20, write_final_mark = 0;
  
  INSERT INTO zero_rows_per_granule1 (p, k, v1, v2) VALUES ('2018-05-15', 1, 1000, 2000), ('2018-05-16', 2, 3000, 4000), ('2018-05-17', 3, 5000, 6000), ('2018-05-18', 4, 7000, 8000);
  
  SYSTEM SYNC REPLICA zero_rows_per_granule2;
  
  SELECT 'Replica synced';
  
  SELECT COUNT(*) FROM zero_rows_per_granule1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule1' and database=currentDatabase() and active=1;
  
  SELECT COUNT(*) FROM zero_rows_per_granule2;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule2' and database=currentDatabase() and active=1;
  
  INSERT INTO zero_rows_per_granule2 (p, k, v1, v2) VALUES ('2018-05-15', 5, 1000, 2000), ('2018-05-16', 6, 3000, 4000), ('2018-05-17', 7, 5000, 6000), ('2018-05-19', 8, 7000, 8000);
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule2' and database=currentDatabase() and active=1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule1' and database=currentDatabase() and active=1;
  
  SELECT sleep(0.7) Format Null;
  
  OPTIMIZE TABLE zero_rows_per_granule2 FINAL;
  
  SELECT 'Parts optimized';
  
  SYSTEM SYNC REPLICA zero_rows_per_granule1;
  
  SELECT 'Replica synced';
  
  SELECT COUNT(*) FROM zero_rows_per_granule2;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule2' and database=currentDatabase() and active=1;
  
  SELECT COUNT(*) FROM zero_rows_per_granule1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule1' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS zero_rows_per_granule1;
  DROP TABLE IF EXISTS zero_rows_per_granule2;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS four_rows_per_granule1;
  DROP TABLE IF EXISTS four_rows_per_granule2;
  
  CREATE TABLE four_rows_per_granule1 (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE ReplicatedMergeTree('/clickhouse/tables/test_00926/four_rows_in_granule', '1') PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 110, write_final_mark = 0;
  
  CREATE TABLE four_rows_per_granule2 (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE ReplicatedMergeTree('/clickhouse/tables/test_00926/four_rows_in_granule', '2') PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 110, write_final_mark = 0;
  
  INSERT INTO four_rows_per_granule1 (p, k, v1, v2) VALUES ('2018-05-15', 1, 1000, 2000), ('2018-05-16', 2, 3000, 4000), ('2018-05-17', 3, 5000, 6000), ('2018-05-18', 4, 7000, 8000);
  
  SELECT COUNT(*) FROM four_rows_per_granule1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule1' and database=currentDatabase() and active=1;
  
  SYSTEM SYNC REPLICA four_rows_per_granule2;
  
  SELECT 'Replica synced';
  
  SELECT COUNT(*) FROM four_rows_per_granule2;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule2' and database=currentDatabase() and active=1;
  
  DETACH TABLE four_rows_per_granule2;
  ATTACH TABLE four_rows_per_granule2;
  
  SELECT 'Table attached';
  
  INSERT INTO four_rows_per_granule2 (p, k, v1, v2) VALUES ('2018-05-15', 5, 1000, 2000), ('2018-05-16', 6, 3000, 4000), ('2018-05-17', 7, 5000, 6000), ('2018-05-19', 8, 7000, 8000);
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule2' and database=currentDatabase() and active=1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule1' and database=currentDatabase() and active=1;
  
  SELECT sleep(0.7) Format Null;
  
  OPTIMIZE TABLE four_rows_per_granule2 FINAL;
  SELECT 'Parts optimized';
  
  DETACH TABLE four_rows_per_granule2;
  
  ATTACH TABLE four_rows_per_granule2;
  
  SELECT COUNT(*) FROM four_rows_per_granule2;
  
  --SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule2' and database=currentDatabase() and active=1;
  
  SYSTEM SYNC REPLICA four_rows_per_granule1;
  SELECT 'Replica synced';
  
  SELECT COUNT(*) FROM four_rows_per_granule1;
  
  --SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule1' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS four_rows_per_granule1;
  DROP TABLE IF EXISTS four_rows_per_granule2;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS adaptive_granularity_alter1;
  DROP TABLE IF EXISTS adaptive_granularity_alter2;
  
  CREATE TABLE adaptive_granularity_alter1 (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE ReplicatedMergeTree('/clickhouse/tables/test_00926/adaptive_granularity_alter', '1') PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 110, write_final_mark = 0;
  
  CREATE TABLE adaptive_granularity_alter2 (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE ReplicatedMergeTree('/clickhouse/tables/test_00926/adaptive_granularity_alter', '2') PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 110, write_final_mark = 0;
  
  INSERT INTO adaptive_granularity_alter1 (p, k, v1, v2) VALUES ('2018-05-15', 1, 1000, 2000), ('2018-05-16', 2, 3000, 4000), ('2018-05-17', 3, 5000, 6000), ('2018-05-18', 4, 7000, 8000);
  
  SELECT COUNT(*) FROM adaptive_granularity_alter1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter1' and database=currentDatabase() and active=1;
  
  SYSTEM SYNC REPLICA adaptive_granularity_alter2;
  SELECT 'Replica synced';
  
  SELECT COUNT(*) FROM adaptive_granularity_alter2;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter2' and database=currentDatabase() and active=1;
  
  ALTER TABLE adaptive_granularity_alter2 MODIFY COLUMN v1 Int16;
  
  DETACH TABLE adaptive_granularity_alter2;
  
  ATTACH TABLE adaptive_granularity_alter2;
  
  SELECT COUNT(*) FROM adaptive_granularity_alter2;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter2' and database=currentDatabase() and active=1;
  
  SYSTEM SYNC REPLICA adaptive_granularity_alter1;
  SELECT 'Replica synced';
  
  SELECT COUNT(*) FROM adaptive_granularity_alter1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter1' and database=currentDatabase() and active=1;
  
  INSERT INTO adaptive_granularity_alter1 (p, k, v1, v2) VALUES ('2018-05-15', 1, 1000, 2000), ('2018-05-16', 5, 3000, 4000), ('2018-05-17', 6, 5000, 6000), ('2018-05-19', 42, 42, 42);
  
  SELECT COUNT(*) FROM adaptive_granularity_alter1;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter1' and database=currentDatabase() and active=1;
  
  SYSTEM SYNC REPLICA adaptive_granularity_alter2;
  
  SELECT COUNT(*) FROM adaptive_granularity_alter2;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter2' and database=currentDatabase() and active=1;
  
  ALTER TABLE adaptive_granularity_alter1 MODIFY COLUMN v2 String;
  
  DETACH TABLE adaptive_granularity_alter1;
  
  ATTACH TABLE adaptive_granularity_alter1;
  
  INSERT INTO adaptive_granularity_alter1 (p, k, v1, v2) VALUES ('2018-05-15', 100, 1000, 'aaaa'), ('2018-05-16', 101, 3000, 'bbbb'), ('2018-05-17', 102, 5000, 'cccc'), ('2018-05-19', 103, 7000, 'dddd');
  
  SELECT sleep(0.7) Format Null;
  
  OPTIMIZE TABLE adaptive_granularity_alter1 FINAL;
  SELECT 'Parts optimized';
  
  SELECT k, v2 FROM adaptive_granularity_alter1 WHERE k >= 100 OR k = 42 ORDER BY k;
  
  SELECT sum(marks) from system.parts WHERE table = 'adaptive_granularity_alter1' and database=currentDatabase() and active=1;
  
  SYSTEM SYNC REPLICA adaptive_granularity_alter2;
  SELECT 'Replica synced';
  
  SELECT k, v2 FROM adaptive_granularity_alter2 WHERE k >= 100 OR k = 42 ORDER BY k;
  
  SELECT sum(marks) from system.parts WHERE table = 'adaptive_granularity_alter2' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS adaptive_granularity_alter1;
  DROP TABLE IF EXISTS adaptive_granularity_alter2;
  