#24573: "Unknown column" exception after removing field in migration.
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Reporter: tttomekkk | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.8
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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Changes (by tttomekkk):
* needs_better_patch: => 0
* needs_tests: => 0
* needs_docs: => 0
Old description:
> When removing field of base class model in my migration and than using
> `RunPython` with subclass model query I face exception
> `django.db.utils.OperationalError: (1054, "Unknown column
> 'bugapp_person.name' in 'field list'")`. It looks like during migrating,
> current migration state of submodel does not reflect field removal. Base
> class is alright though. Additionally, this happens only when at least
> one extra model with OTO field to base model exists.
>
> This occurs in Django 1.8. I had no problem with any of 1.7.x version,
> last tested was 1.7.7. Simplified snippet attached below runs smoothly
> with version 1.7 and should reproduce the error in 1.8.
New description:
When removing field of base class model in my migration and than using
`RunPython` with subclass model query I face exception
`django.db.utils.OperationalError: (1054, "Unknown column
'bugapp_person.name' in 'field list'")`. It looks like during migrating,
current migration state of submodel does not reflect field removal. Base
class is alright though. Additionally, this happens only when at least one
extra model with OTO field to base model exists.
This occurs in Django 1.8. I had no problem with any of 1.7.x (1.7.7
recently). Simplified snippet attached below runs smoothly with 1.7 and
should reproduce the error under 1.8.
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Ticket URL: <https://code.djangoproject.com/ticket/24573#comment:1>
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