La colonne Postgres n'existe pas

Modifié :la capitalisation citée bloque la requête. Dans la sortie du deuxième échec ci-dessous, vous pouvez voir que Postgres n'aime pas les majuscules. Il a l'habitude de tout mettre en minuscules sauf si vous forcez avec " guillemets.

--fails
select a
from
(select 1 as "A") as t;

--fails
select A
from
(select 1 as "A") as t;

--works
select "A"
from
(select 1 as "A") as t;

psql:new.sql:5: ERROR:  column "a" does not exist
LINE 1: select a
               ^
psql:new.sql:10: ERROR:  column "a" does not exist
LINE 1: select A
               ^
 A 
───
 1
(1 row)


select ...
timeloggedToday.date_logged "DATE_LOGGED_TODAY",
-- should be: timeloggedToday."DATE_LOGGED" "DATE_LOGGED_TODAY",

...

LEFT JOIN
  (SELECT app_user.lower_user_name,
          to_char(startdate, '%Y-%m-%d') AS "DATE_LOGGED",
          Sum(timeworked) / 3600 "TIME_IN_HOURS",
          startdate - Now() "DIFFERENCE_DAYS"
   ...
  ) timeloggedToday ON timeloggedToday.lower_user_name = users.author;

Je penserais à me débarrasser des majuscules et des guillemets. Ça va juste causer des maux de tête. En remarque, vous pouvez écrire la jointure gauche une seule fois en :

-- instead of enumerating each possible interval  
WHERE to_char(Now() - INTERVAL '8 days', '%Y-%m-%d') < to_char(startdate, '%Y-%m-%d')
-- select the interval
now()::date - start_date as diff
-- then build up your columns like:
case(case when diff=0 then date_logged else null end) as date_logged_today
case(case when diff=1 then date_logged else null end) as date_logged_yesterday
-- and so on ...