Opened 15 years ago
Last modified 10 months ago
#10060 new
Multiple table annotation failure — at Initial Version
| Reported by: | Owned by: | ||
|---|---|---|---|
| Component: | Database layer (models, ORM) | Version: | dev |
| Severity: | Normal | Keywords: | |
| Cc: | flosch@…, bendavis78@…, cmutel@…, daniel@…, Gabriel Hurley, sebleier@…, greg@…, mpjung@…, teemu.kurppa@…, Evstifeev Roman, michaelB, Marc Aymerich, nowak2000@…, Maxim, Gökhan Sarı, Adam M. Costello, Antoine, David Kwong | Triage Stage: | Accepted |
| Has patch: | no | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description
Annotating across multiple tables results in wrong answers. i.e.
In [110]: total = Branch.objects.all().annotate(total=Sum('centerclientloanamount'))
In [111]: total[0].total
Out[111]: 3433000
In [112]: repaid = Branch.objects.all().annotate(repaid=Sum('centerclientloanpayment_schedulepaymentsprincipal'))
In [113]: repaid[0].repaid
Out[113]: 1976320.0
In [114]: both = Branch.objects.all().annotate(total=Sum('centerclientloanamount'),repaid=Sum('centerclientloanpayment_schedulepaymentsprincipal'))
In [115]: both[0].repaid
Out[115]: 1976320.0
In [116]: both[0].total
Out[116]: 98816000
Compare the output of total in 116 vs. 111 (the correct answer).
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