#29171: PostgreSQL specific model fields - ArrayField: Type Mismatch
-------------------------------------+-------------------------------------
Reporter: Pal | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 2.0
(models, ORM) |
Severity: Normal | Resolution:
Keywords: Postgres Array | Triage Stage:
Query | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Pal):
Replying to [comment:2 Simon Charette]:
> Could you provide a traceback and more details about how ''it fails''?
>
> Does it happen when you define a model using `ArrayField(CharField())`,
when performing a query annotation?
Yes. When I defined the model as shown in the documentation at
https://docs.djangoproject.com/en/2.0/ref/contrib/postgres/fields
/#querying-arrayfield , the query fails. But if I change models.CharField
to models.TextField, the query succeeds.
Here are the error statements from apache2 error log:
psycopg2.ProgrammingError: operator does not exist: text[] @> character
varying[]
django.db.utils.ProgrammingError: operator does not exist: text[] @>
character varying[]
May be we need to change the documentation to reflect the change above.
Thanks.
--
Ticket URL: <https://code.djangoproject.com/ticket/29171#comment:3>
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