Postgres的分組值在一起，而不是具有獨立價值

Question

我寫了下面這段代碼，我想製作的東西，看起來與此類似：

Days Before Stay | Number of Submits 
------------------------------------- 
0-9  |  11 
10-19  |  14 
20-29  |   3 

我已創建它創建了一個語法錯誤選擇case語句

WITH sql_runner_query AS (SELECT 
events_raw.properties ->> 'days_before_stay' AS "Number of Days 
Before Stay", 
COUNT(CASE WHEN ((events_raw.properties ->> 'event_type') LIKE 
'fs_mystay_activity_submit') THEN 1 ELSE NULL END) AS "Number of 
Activities Processed" 
FROM events_raw 

WHERE (events_raw.account_id = 7270737) AND 
((((events_raw.properties ->> 'days_before_stay') IS NOT NULL) AND 
((events_raw.properties ->> 'days_before_stay') IS NOT NULL AND 
LENGTH(events_raw.properties ->> 'days_before_stay') <> 0))) AND 
(events_raw.account_id > 0) 
GROUP BY 1 
ORDER BY 1 desc 
LIMIT 500 
) 

(SELECT 
events_raw.properties ->> 'days_before_stay' AS "Number of Days 
Before Stay", 
COUNT(CASE WHEN ((events_raw.properties ->> 'event_type') LIKE 
'fs_mystay_activity_submit') THEN 1 ELSE NULL END) AS "Number of 
Activities Processed" 
case when 'days_before_stay' >= 0 and <=10 then '0-10' 
else 
'11-300' end as range 
FROM events_raw 

GROUP BY 1,2 
ORDER BY 1 DESC 
LIMIT 5000 

Answer 1

在查詢的第二部分(SELECT不應該有一個(

您在這裏缺少一個逗號：

COUNT(CASE WHEN ((events_raw.properties ->> 'event_type') LIKE 'fs_mystay_activity_submit') THEN 1 ELSE NULL END) AS "Number of Activities Processed" , -- add a comma here case when 'days_before_stay' >= 0 and <=10 then '0-10' else '11-300' end as range

與查詢的其他問題：

• 你爲什麼要由COUNT分組（）？
• 爲什麼你有一個名爲sql_runner_query的CTE，然後不在主查詢中引用它？