Erhalten kumulative monatliche zählen Benutzer basierend auf Benutzer-E-Mail

Question

Ich habe die folgende Abfrage monatliche kumulative Benutzer zählt zu erhalten:

SELECT RTRIM(TO_CHAR(DATE_TRUNC('month', created_at), 'Month YYYY')) AS month, 
     SUM(COUNT(id)::int) OVER (ORDER BY DATE_TRUNC('month', created_at)) AS total, 
     SUM((email  like '%@domain%')::int) AS with_domain, 
     SUM((email not like '%@domain%')::int) AS without_domain 
FROM users 
GROUP BY DATE_TRUNC('month', created_at) 
ORDER BY DATE_TRUNC('month', created_at); 

Das Ergebnis ist wie folgt:

[ 
    {"month"=>"October 2015", "total"=>2, "with_domain"=>1, "without_domain"=>1}, 
    {"month"=>"December 2015", "total"=>6, "with_domain"=>4, "without_domain"=>0}, 
    {"month"=>"January 2016", "total"=>13, "with_domain"=>4, "without_domain"=>3}, 
    {"month"=>"February 2016", "total"=>15, "with_domain"=>2, "without_domain"=>0}, 
    {"month"=>"March  2016", "total"=>36, "with_domain"=>15, "without_domain"=>6}, 
] 

See, wie total Zählung kumulativ und andere nicht?

Ich habe versucht, die folgende Abfrage:

SELECT RTRIM(TO_CHAR(DATE_TRUNC('month', created_at), 'Month YYYY')) AS month, 
     SUM(COUNT(id)::int)     OVER (ORDER BY DATE_TRUNC('month', created_at)) AS total, 
     SUM((email  like '%@domain%')::int) OVER (ORDER BY DATE_TRUNC('month', created_at)) AS with_domain, 
     SUM((email not like '%@domain%')::int) OVER (ORDER BY DATE_TRUNC('month', created_at)) AS without_domain 
FROM users 
GROUP BY DATE_TRUNC('month', created_at) 
ORDER BY DATE_TRUNC('month', created_at); 

Aber es wirft

column "users.email" must appear in the GROUP BY clause or be used in an aggregate function LINE 3: SUM((email like '%@domain%')::int) OVER (ORDER BY...^: SELECT RTRI 

und das Hinzufügen von email-GROUP BY Klausel überhaupt keinen Sinn macht ...

Wie kann ich alles machen kumuliert (wie es mit total getan wird)?

Erwartetes Ergebnis ist wie

[ 
    {"month"=>"October 2015", "total"=>2, "with_domain"=>1, "without_domain"=>1}, 
    {"month"=>"December 2015", "total"=>6, "with_domain"=>5, "without_domain"=>1}, 
    {"month"=>"January 2016", "total"=>13, "with_domain"=>9, "without_domain"=>4}, 
    {"month"=>"February 2016", "total"=>15, "with_domain"=>11, "without_domain"=>4}, 
    {"month"=>"March  2016", "total"=>36, "with_domain"=>26, "without_domain"=>10}, 
] 

Answer 1

wiederholen Sie einfach die Fenster Klauseln für jede Version Sie gesammelt werden sollen:

SELECT RTRIM(TO_CHAR(DATE_TRUNC('month', created_at), 'Month YYYY')) AS month, 
     SUM(COUNT(id)::int) OVER (ORDER BY DATE_TRUNC('month', created_at)) AS total, 
     SUM(SUM((email  like '%@domain%')::int)) OVER (ORDER BY DATE_TRUNC('month', created_at)) AS with_domain, 
     SUM(SUM((email not like '%@domain%')::int)) OVER (ORDER BY DATE_TRUNC('month', created_at)) AS without_domain 
FROM users 
GROUP BY DATE_TRUNC('month', created_at) 
ORDER BY DATE_TRUNC('month', created_at); 

Answer 2

basierend auf OP neu geschrieben

Verwendung Fensterfunktionen mit, um Kommentare für die Ruhe als auch aggs. wenn Sie auch gleiche Fenster verwenden, wobei es besser aus Hauptteil wie hier:

SELECT distinct RTRIM(TO_CHAR(DATE_TRUNC('month', created_at), 'Month YYYY')) AS month, 
     SUM(COUNT(id)::int) OVER w AS total, 
     SUM((email  like '%@domain%')::int) OVER w AS with_domain, 
     SUM((email not like '%@domain%')::int) OVER w AS without_domain 
     , DATE_TRUNC('month', created_at) --added for sorting 
FROM users 
WINDOW W AS (PARTITION BY DATE_TRUNC('month', created_at) ORDER BY DATE_TRUNC('month', created_at)) 
ORDER BY DATE_TRUNC('month', created_at); 

Answer 3

die gruppierten Zählungen pro Monat und dann die laufende Summe erhalten.

SELECT month, 
     SUM(total) OVER (ORDER BY month) as total, 
     SUM(with_domain) OVER (ORDER BY month) AS with_domain, 
     SUM(without_domain) OVER (ORDER BY month) AS without_domain 
FROM (SELECT RTRIM(TO_CHAR(DATE_TRUNC('month', created_at), 'Month YYYY')) AS month, 
     COUNT(*) AS total, 
     SUM((email  like '%@domain%')::int) AS with_domain, 
     SUM((email not like '%@domain%')::int) AS without_domain 
     FROM users 
     GROUP BY RTRIM(TO_CHAR(DATE_TRUNC('month', created_at), 'Month YYYY')) 
     ) t 
ORDER BY month;