Как создать фильтр функций от PostgreSQL до MySQL? - PullRequest
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Как создать фильтр функций от PostgreSQL до MySQL?

0 голосов
/ 12 июля 2020

Как создать функцию фильтр PostgreSQL до MySQL?

Я пытался сделать следующее, но не смог: 

select
    CASE WHEN statusstorie = false and statusTwentyFive = true and category not in ('goals') and space = 'personal' THEN count(*) ELSE 0 END as "25%",
    CASE WHEN statusstorie = false and statusFifty = true and category not in ('goals') and space = 'personal' THEN count(*) ELSE 0 END as "50%",
    CASE WHEN statusstorie = false and statusSeventyFive = true and category not in ('goals') and space = 'personal' THEN count(*) ELSE 0 END as "75%",
    CASE WHEN statusstorie = false and statusOneHundred = true and category not in ('goals') and space = 'personal' THEN count(*) ELSE 0 END as "100%"
from goals

PSQL Пример: 

select
    count(*) filter(where statusstorie = false and statusTwentyFive = true and category not in ('goals') and space = 'personal')  "25%",
    count(*) filter(where statusstorie = false and statusFifty = true and category not in ('goals') and space = 'personal') "50%",
    count(*) filter(where statusstorie = false and statusSeventyFive = true and category not in ('goals') and space = 'personal') "75%",
    count(*) filter(where statusstorie = false and statusOneHundred = true and category not in ('goals') and space = 'personal') "100%"
from goals

Примечание: Если возможно, я хотел бы воспроизвести функцию на MySQL

CREATE FUNCTION filter()

1 Ответ

1 голос
/ 12 июля 2020

Это работает для вас? 

select
    sum(CASE WHEN statusstorie = false and statusTwentyFive = true and category not in ('goals') and space = 'personal' THEN 1 ELSE 0 END) as "25%",
    sum(CASE WHEN statusstorie = false and statusFifty = true and category not in ('goals') and space = 'personal' THEN 1 ELSE 0 END) as "50%",
    sum(CASE WHEN statusstorie = false and statusSeventyFive = true and category not in ('goals') and space = 'personal' THEN 1 ELSE 0 END) as "75%",
    sum(CASE WHEN statusstorie = false and statusOneHundred = true and category not in ('goals') and space = 'personal' THEN 1 ELSE 0 END) as "100%"
from goals
...