Opened 5 years ago

Closed 5 years ago

#32020 closed Bug (duplicate)

Wrong multiple Count() annotations.

Reported by: rgermain Owned by: nobody
Component: Database layer (models, ORM) Version: 3.1
Severity: Normal Keywords: annotate Count
Cc: Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description

I have a problem when I want to add several Count, the result is incomprehensible.

individual:

User.objects.annotate(create=Count("event_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("eventlang_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("people_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("peoplelang_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("picture_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("picturelang_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("tag_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("taglang_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("translate_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 211}]>

User.objects.annotate(create=Count("translatelang_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 422}]>

User.objects.annotate(create=Count("video_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

User.objects.annotate(create=Count("videolang_creator")).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 0}]>

so the total is 633
(422 + 211 + 0 * 10) = 633

I would like to do it in one line so :

User.objects.annotate(create=
            Count("event_creator") + 
            Count("eventlang_creator") +
            Count("people_creator") +
            Count("peoplelang_creator") +
            Count("picture_creator") +
            Count("picturelang_creator") +
            Count("tag_creator") +
            Count("taglang_creator") +
            Count("translate_creator") +
            Count("translatelang_creator") +
            Count("video_creator") +
            Count("videolang_creator")
).values("username", "create")
<QuerySet [{'username': 'rgermain', 'create': 178084}]>

total is 178084, same with aggregate.
i use sqlite3.

Change History (1)

comment:1 by Mariusz Felisiak, 5 years ago

Resolution: → duplicate
Status: new → closed
Summary: wrong multiple count annotate → Wrong multiple Count() annotations.

This is an expected behavior, see comment. Duplicate of #29271.

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