#27824: Cannot chain unaccent transform with key lookup in Postgres JSON field
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Reporter: Aymeric Augustin | Owner: (none)
Type: New feature | Status: new
Component: contrib.postgres | Version: 1.10
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Description changed by Aymeric Augustin:
Old description:
> With the following model:
>
> ```
> from django.contrib.postgres.fields import JSONField
> from django.db import models
>
> class Subscription(models.Model):
> inputs = JSONField()
> ```
>
> I'd like this query to work (assuming a inputs look like `{'first_name':
> '...'}`:
>
> ```
> Subscription.objects.filter(inputs__first_name__unaccent__icontains="...")
> ```
>
> But it fails with:
>
> ```
> django.db.utils.ProgrammingError: operator does not exist: jsonb #> text
> LINE 1: ...%' OR UPPER("subscriptions_subscription"."inputs" #>
> ARRAY['...
> ^
> HINT: No operator matches the given name and argument type(s). You might
> need to add explicit type casts.
> ```
>
> cecef94275118dc49a1b0d89d3ca9734e2ec9776 registered a bunch of lookups
> for chaining after a key transform, but unaccent wasn't included. I
> suggest to include it as well.
New description:
With the following model:
{{{
from django.contrib.postgres.fields import JSONField
from django.db import models
class Subscription(models.Model):
inputs = JSONField()
}}}
I'd like this query to work (assuming a inputs look like `{'first_name':
'...'}`:
{{{
Subscription.objects.filter(inputs__first_name__unaccent__icontains="...")
}}}
But it fails with:
{{{
django.db.utils.ProgrammingError: operator does not exist: jsonb #> text
LINE 1: ...%' OR UPPER("subscriptions_subscription"."inputs" #> ARRAY['...
^
HINT: No operator matches the given name and argument type(s). You might
need to add explicit type casts.
}}}
cecef94275118dc49a1b0d89d3ca9734e2ec9776 registered a bunch of lookups for
chaining after a key transform, but unaccent wasn't included. I suggest to
include it as well.
--
--
Ticket URL: <https://code.djangoproject.com/ticket/27824#comment:1>
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