#31919: Django fails with FieldError: Expression contains mixed types:
IntegerField, AutoField. You must set output_field.
-------------------------------------+-------------------------------------
Reporter: StefanosChaliasos | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: master
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Simon Charette):
* type: Uncategorized => Bug
* component: Uncategorized => Database layer (models, ORM)
* stage: Unreviewed => Accepted
Comment:
This is likely a regression caused by
1e38f1191de21b6e96736f58df57dfb851a28c1f
Stefanos, could you confirm the following patch addresses your issue
{{{#!diff
diff --git a/django/db/models/expressions.py
b/django/db/models/expressions.py
index a9768919a2..90d90119d0 100644
--- a/django/db/models/expressions.py
+++ b/django/db/models/expressions.py
@@ -421,6 +421,7 @@ class Expression(BaseExpression, Combinable):
_connector_combinators = {
connector: [
+ (fields.IntegerField, fields.IntegerField, fields.IntegerField),
(fields.IntegerField, fields.DecimalField, fields.DecimalField),
(fields.DecimalField, fields.IntegerField, fields.DecimalField),
(fields.IntegerField, fields.FloatField, fields.FloatField),
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/31919#comment:1>
Django <https://code.djangoproject.com/>
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