text: ----- Group of very similar simple tests ------
  select '----HORIZONTAL MERGE TESTS----';
  DROP TABLE IF EXISTS zero_rows_per_granule;
  
  CREATE TABLE zero_rows_per_granule (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 20, write_final_mark = 0;
  
  INSERT INTO zero_rows_per_granule (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 zero_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule' and database=currentDatabase() and active=1;
  
  INSERT INTO zero_rows_per_granule (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);
  
  OPTIMIZE TABLE zero_rows_per_granule FINAL;
  
  SELECT COUNT(*) FROM zero_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS zero_rows_per_granule;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS two_rows_per_granule;
  
  CREATE TABLE two_rows_per_granule (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 40, write_final_mark = 0;
  
  INSERT INTO two_rows_per_granule (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 two_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'two_rows_per_granule' and database=currentDatabase() and active=1;
  
  INSERT INTO two_rows_per_granule (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);
  
  OPTIMIZE TABLE two_rows_per_granule FINAL;
  
  SELECT COUNT(*) FROM two_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'two_rows_per_granule' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS two_rows_per_granule;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS four_rows_per_granule;
  
  CREATE TABLE four_rows_per_granule (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 110, write_final_mark = 0;
  
  INSERT INTO four_rows_per_granule (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_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule' and database=currentDatabase() and active=1;
  DETACH TABLE four_rows_per_granule;
  ATTACH TABLE four_rows_per_granule;
  
  INSERT INTO four_rows_per_granule (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);
  
  OPTIMIZE TABLE four_rows_per_granule FINAL;
  
  DETACH TABLE four_rows_per_granule;
  
  ATTACH TABLE four_rows_per_granule;
  
  SELECT COUNT(*) FROM four_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS four_rows_per_granule;
  
  -----  More interesting tests ------
  SELECT '-----';
  
  DROP TABLE IF EXISTS huge_granularity_small_blocks;
  
  CREATE TABLE huge_granularity_small_blocks (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 1000000, write_final_mark = 0;
  
  INSERT INTO huge_granularity_small_blocks (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 huge_granularity_small_blocks;
  
  SELECT distinct(marks) from system.parts WHERE table = 'huge_granularity_small_blocks' and database=currentDatabase() and active=1;
  
  INSERT INTO huge_granularity_small_blocks (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', 7, 7000, 8000);
  
  DETACH TABLE huge_granularity_small_blocks;
  
  ATTACH TABLE huge_granularity_small_blocks;
  
  OPTIMIZE TABLE huge_granularity_small_blocks FINAL;
  
  SELECT COUNT(*) FROM huge_granularity_small_blocks;
  
  SELECT distinct(marks) from system.parts WHERE table = 'huge_granularity_small_blocks' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS huge_granularity_small_blocks;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS adaptive_granularity_alter;
  
  CREATE TABLE adaptive_granularity_alter (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k SETTINGS index_granularity_bytes = 110, write_final_mark = 0;
  
  INSERT INTO adaptive_granularity_alter (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_alter;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  OPTIMIZE TABLE adaptive_granularity_alter FINAL;
  
  ALTER TABLE adaptive_granularity_alter MODIFY COLUMN v1 Int16;
  
  DETACH TABLE adaptive_granularity_alter;
  
  ATTACH TABLE adaptive_granularity_alter;
  
  SELECT COUNT(*) FROM adaptive_granularity_alter;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  INSERT INTO adaptive_granularity_alter (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_alter;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  ALTER TABLE adaptive_granularity_alter MODIFY COLUMN v2 String;
  
  DETACH TABLE adaptive_granularity_alter;
  
  ATTACH TABLE adaptive_granularity_alter;
  
  INSERT INTO adaptive_granularity_alter (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');
  
  OPTIMIZE TABLE adaptive_granularity_alter FINAL;
  
  SELECT k, v2 FROM adaptive_granularity_alter WHERE k >= 100 OR k = 42 ORDER BY k;
  
  SELECT sum(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS adaptive_granularity_alter;
  
  -----------------------------------------------
  -------------VERTICAL MERGE TESTS--------------
  -----------------------------------------------
  select '----VERTICAL MERGE TESTS----';
  DROP TABLE IF EXISTS zero_rows_per_granule;
  
  CREATE TABLE zero_rows_per_granule (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k
    SETTINGS index_granularity_bytes=20, write_final_mark = 0,
             enable_vertical_merge_algorithm=1,
             vertical_merge_algorithm_min_rows_to_activate=0,
             vertical_merge_algorithm_min_columns_to_activate=0;
  
  
  INSERT INTO zero_rows_per_granule (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 zero_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule' and database=currentDatabase() and active=1;
  
  INSERT INTO zero_rows_per_granule (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);
  
  OPTIMIZE TABLE zero_rows_per_granule FINAL;
  
  SELECT COUNT(*) FROM zero_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'zero_rows_per_granule' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS zero_rows_per_granule;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS two_rows_per_granule;
  
  CREATE TABLE two_rows_per_granule (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k
    SETTINGS index_granularity_bytes=40, write_final_mark = 0,
             enable_vertical_merge_algorithm=1,
             vertical_merge_algorithm_min_rows_to_activate=0,
             vertical_merge_algorithm_min_columns_to_activate=0;
  
  INSERT INTO two_rows_per_granule (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 two_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'two_rows_per_granule' and database=currentDatabase() and active=1;
  
  INSERT INTO two_rows_per_granule (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);
  
  OPTIMIZE TABLE two_rows_per_granule FINAL;
  
  SELECT COUNT(*) FROM two_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'two_rows_per_granule' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS two_rows_per_granule;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS four_rows_per_granule;
  
  CREATE TABLE four_rows_per_granule (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k
    SETTINGS index_granularity_bytes = 110, write_final_mark = 0,
             enable_vertical_merge_algorithm=1,
             vertical_merge_algorithm_min_rows_to_activate=0,
             vertical_merge_algorithm_min_columns_to_activate=0;
  
  INSERT INTO four_rows_per_granule (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_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule' and database=currentDatabase() and active=1;
  DETACH TABLE four_rows_per_granule;
  ATTACH TABLE four_rows_per_granule;
  
  INSERT INTO four_rows_per_granule (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);
  
  OPTIMIZE TABLE four_rows_per_granule FINAL;
  
  DETACH TABLE four_rows_per_granule;
  
  ATTACH TABLE four_rows_per_granule;
  
  SELECT COUNT(*) FROM four_rows_per_granule;
  
  SELECT distinct(marks) from system.parts WHERE table = 'four_rows_per_granule' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS four_rows_per_granule;
  
  -----  More interesting tests ------
  SELECT '-----';
  
  DROP TABLE IF EXISTS huge_granularity_small_blocks;
  
  CREATE TABLE huge_granularity_small_blocks (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k
    SETTINGS index_granularity_bytes=1000000, write_final_mark = 0,
             enable_vertical_merge_algorithm=1,
             vertical_merge_algorithm_min_rows_to_activate=0,
             vertical_merge_algorithm_min_columns_to_activate=0;
  
  INSERT INTO huge_granularity_small_blocks (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 huge_granularity_small_blocks;
  
  SELECT distinct(marks) from system.parts WHERE table = 'huge_granularity_small_blocks' and database=currentDatabase() and active=1;
  
  INSERT INTO huge_granularity_small_blocks (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', 7, 7000, 8000);
  
  DETACH TABLE huge_granularity_small_blocks;
  
  ATTACH TABLE huge_granularity_small_blocks;
  
  OPTIMIZE TABLE huge_granularity_small_blocks FINAL;
  
  SELECT COUNT(*) FROM huge_granularity_small_blocks;
  
  SELECT distinct(marks) from system.parts WHERE table = 'huge_granularity_small_blocks' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS huge_granularity_small_blocks;
  
  SELECT '-----';
  
  DROP TABLE IF EXISTS adaptive_granularity_alter;
  
  CREATE TABLE adaptive_granularity_alter (
    p Date,
    k UInt64,
    v1 UInt64,
    v2 Int64
  ) ENGINE MergeTree() PARTITION BY toYYYYMM(p) ORDER BY k
    SETTINGS index_granularity_bytes=110, write_final_mark = 0,
             enable_vertical_merge_algorithm=1,
             vertical_merge_algorithm_min_rows_to_activate=0,
             vertical_merge_algorithm_min_columns_to_activate=0;
  
  
  INSERT INTO adaptive_granularity_alter (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_alter;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  OPTIMIZE TABLE adaptive_granularity_alter FINAL;
  
  ALTER TABLE adaptive_granularity_alter MODIFY COLUMN v1 Int16;
  
  DETACH TABLE adaptive_granularity_alter;
  
  ATTACH TABLE adaptive_granularity_alter;
  
  SELECT COUNT(*) FROM adaptive_granularity_alter;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  INSERT INTO adaptive_granularity_alter (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_alter;
  
  SELECT distinct(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  ALTER TABLE adaptive_granularity_alter MODIFY COLUMN v2 String;
  
  DETACH TABLE adaptive_granularity_alter;
  
  ATTACH TABLE adaptive_granularity_alter;
  
  INSERT INTO adaptive_granularity_alter (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');
  
  OPTIMIZE TABLE adaptive_granularity_alter FINAL;
  
  SELECT k, v2 FROM adaptive_granularity_alter WHERE k >= 100 OR k = 42 ORDER BY k;
  
  SELECT sum(marks) from system.parts WHERE table = 'adaptive_granularity_alter' and database=currentDatabase() and active=1;
  
  DROP TABLE IF EXISTS adaptive_granularity_alter;
  