I'm navigating a code base and I came across some raw SQL as shown below
SELECT count(1) AS "n", "forms_newspaperperson"."sex", "forms_newspapersheet"."topic"
FROM "forms_newspaperperson"
INNER JOIN "forms_newspapersheet" ON ("forms_newspaperperson"."newspaper_sheet_id" = "forms_newspapersheet"."id")
, "reports_weights"
WHERE ("forms_newspaperperson"."deleted" = %s
AND "forms_newspapersheet"."country" IN (%s)
AND "forms_newspaperperson"."sex" IN (%s, %s)
AND (reports_weights.country = forms_newspapersheet.country)
AND (reports_weights.media_type = 'Print'))`
this raises the following error
django.db.utils.ProgrammingError: column "forms_newspaperperson.sex" must appear in the GROUP BY clause or be used in an aggregate function
web_1 | LINE 1: SELECT count(1) AS "n", "forms_newspaperperson"."sex", "form...
any suggestions on where I should place the GROUP BY
?
You have an aggregation query. So you need a group by
:
SELECT count(1) AS "n", npp."sex", nps."topic"
FROM "forms_newspaperperson" npp INNER JOIN
"forms_newspapersheet" nps
ON npp."newspaper_sheet_id" = nps."id" CROSS JOIN
"reports_weights" w
ON w.country = npp.country
WHERE npp."deleted" = %s AND nps."country" IN (%s) AND
npp."sex" IN (%s, %s) AND w.media_type = 'Print'
GROUP BY npp."sex", nps."topic";
Also note that I fixed the FROM
clause to remove the comma -- which is antiquated -- and replace it with proper, explicit, standard, readable JOIN
syntax.