Opened 7 years ago
Last modified 20 months ago
#28872 new Bug
JSONField __in operator breaks when given a values_list() — at Initial Version
Reported by: | Jerome Leclanche | Owned by: | |
---|---|---|---|
Component: | Database layer (models, ORM) | Version: | dev |
Severity: | Normal | Keywords: | |
Cc: | VCAMP | Triage Stage: | Accepted |
Has patch: | yes | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | yes |
Easy pickings: | no | UI/UX: | no |
Description
Prerequisites
- Create a model MyModel1 with the field
resource = JSONField()
. - Create another model MyModel2 with a field
id = CharField(max_length=255)
Reproduce by doing MyModel1.objects.filter(resourcefooidin=MyModel2.objects.all().values_list("id"))
Expected result: Should look at MyModel1 for objects with resource
matching {"foo": {"id": <id>}}
.
Actual result:
ERROR: operator does not exist: jsonb = character varying
LINE 1: ...AND ("resource" #> '{foo,id}') IN (SELECT...
The actual issue is that when passing a values_list() to in, the values list is not cast to jsonb (unlike when passing a text type). In the resulting sql, we can see IN (SELECT U0."id" AS Col1 FROM mymodel2 U0 ...)
. Wrapping to_json(U0."id")
solves the issue.