primitives_benchmark_01.sql

-- You must run the benchmark schema localed in 
-- https://gist.github.com/erichosick/eeadc41e33ea2a91bd136b9433e73dc7
-- before running the following benchmark

DO $$
DECLARE d_exec_count int = 20;
DECLARE d_row_count int = 3e6;
BEGIN

  CALL benchmark.execute(
    'gen_random_uuid',
    'gen_random_uuid',
    d_row_count,
    FORMAT(
      'SELECT gen_random_uuid()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    FORMAT(
      'SELECT gen_random_uuid()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    d_exec_count
  );

  CALL benchmark.execute(
    'gen_random_uuid',
    'uuid_generate_v1',
    d_row_count,
    FORMAT(
      'SELECT gen_random_uuid()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    FORMAT(
      'SELECT uuid_generate_v1()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    d_exec_count
  );

  CALL benchmark.execute(
    'gen_random_uuid',
    'uuid_generate_v4',
    d_row_count,
    FORMAT(
      'SELECT gen_random_uuid()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    FORMAT(
      'SELECT uuid_generate_v4()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    d_exec_count
  );

  CALL benchmark.execute(
    'uuid_generate_v1',
    'uuid_generate_v1mc',
    d_row_count,
    FORMAT(
      'SELECT uuid_generate_v1()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    FORMAT(
      'SELECT uuid_generate_v1mc()
       FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    d_exec_count
  );

  CALL benchmark.execute(
    'uuid_generate_v3',
    'uuid_generate_v5',
    d_row_count,
    FORMAT(
      'SELECT uuid_generate_v3(
        uuid_ns_url(),
        RANDOM()::text
      ) FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    FORMAT(
      'SELECT uuid_generate_v5(
        uuid_ns_url(),
        RANDOM()::text
      ) FROM generate_series(%s,%s) AS series;',
      1, d_row_count
    ),
    d_exec_count
  );

END;
$$;


SELECT
  thresh.faster_sql,
  thresh.description_sql_left || ' -  '
  || thresh.description_sql_right || ' | '
  || thresh.times_faster || 'x  | '
  || thresh.average_left || ' ± ' ||
  thresh.standard_deviation_left || ' | ' ||
  thresh.average_right || ' ± ' ||
  standard_deviation_right AS data_row
FROM benchmark.compare_result_outcome AS thresh
INNER JOIN benchmark.compare AS comp
  ON comp.description_sql_left = thresh.description_sql_left
  AND comp.description_sql_right = thresh.description_sql_right
ORDER BY comp.created_on ASC;