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add solution #1

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RJD2
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@RJD2 RJD2 commented Dec 14, 2020

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eldmitrieva
eldmitrieva suggested changes Dec 20, 2020
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query.sql
from vacancy v
INNER JOIN employer e on e.id = v.employer_id
WHERE compensation_from is null
and compensation_to is null
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and -> AND

query.sql
FROM (
SELECT employer_id,
vacancy_id,
COUNT(1) AS response
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тут лучше count(response_id), понятнее выглядит

query.sql
GROUP BY employer_id
ORDER BY max_response DESC
)
SELECT name
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надо поправить так, чтобы в выборке могли оказаться работодатели без откликов, если ни у каких компаний тоже нет откликов

query.sql
*/
SELECT city,
MIN(response.date - vacancy.published) AS min_time,
MAX(response.date - vacancy.published) AS max_time
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необходимо считать время до ПЕРВОГО отклика на вакансию

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@eldmitrieva eldmitrieva eldmitrieva requested changes

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@RJD2 @eldmitrieva