twingo-b

<source>
  type tail
  format apache
  time_format %d/%b/%Y:%H:%M:%S %z
  path /var/log/httpd/access_log
  tag td.apache_access_log
  pos_file /var/lib/fluent/td.apache_access_log.pos
</source>

...

twingo-b

-- sum' [1, 2, 3, 4, 5] == 15
sum' :: [Int] -> Int
sum' [] = 0
-- sum' [x] = x
sum' (x:xs) = x + sum'(xs)

-- 実装書いてね！
-- product' [] == 1
-- product' [1, 2, 3, 4, 5] == 120
product' :: [Int] -> Int

twingo-b

-- 1990年に雇った人の現在給与一覧を取得
SELECT
  departments.dept_name,
  employees.last_name AS manager_last_name,
  salaries.salary,
  titles.title,
  ninety_hire_man_employees.*
FROM (
    SELECT
      *

twingo-b

-- 1990年に雇った人の現在給与一覧を取得
-- 部署ごとの給与TOP3を取得
WITH ninety_hire_man_employees AS (
  SELECT
    *
  FROM
    employees.employees
  WHERE
    hire_date BETWEEN '1990-01-01'
    AND '1990-12-31'