Opened 6 years ago
Last modified 5 years ago
#29823 closed Cleanup/optimization
Incorrect Decimal handling in Sum queries — at Version 1
| Reported by: | Jurica Železnjak | Owned by: | nobody |
|---|---|---|---|
| Component: | Documentation | Version: | 2.1 |
| Severity: | Normal | Keywords: | |
| Cc: | Sergey Fedoseev | Triage Stage: | Accepted |
| Has patch: | yes | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description (last modified by )
When doing Sum aggregate or annotate query on a DecimalField the result is a close-to-zero float (scientific notation) when it should be zero.
For example: 8 records, with following values: 7.85, -7, 19.85, -7, -5, -7, -0.85, -0.85
Aggregate Sum query on this column should equal Decimal('0.00'), but I'm getting Decimal('1.77635683940025E-15').
Before Django 2.1.0 this worked properly.
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