#30800: Altering field crashes for fields with custom db_type() on PostgreSQL.
-------------------------------------+-------------------------------------
Reporter: felixxm | Owner: felixxm
Type: Bug | Status: assigned
Component: Database | Version: 3.0
layer (models, ORM) |
Severity: Release | Keywords:
blocker |
Triage Stage: Accepted | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Altering field crashes for fields with a custom `db_type()` on PostgreSQL,
e.g. `ArrayField`:
{{{
def db_type(self, connection):
size = self.size or ''
return '%s[%s]' % (self.base_field.db_type(connection), size)
}}}
Regression in 1378d665a1c85897d951f2ca9618b848fdbba2e7.
{{{
File "django/django/db/backends/postgresql/schema.py", line 72, in
_alter_column_type_sql
if self._field_data_type(old_field) !=
self._field_data_type(new_field):
File "django/django/db/backends/postgresql/schema.py", line 45, in
_field_data_type
return self.connection.data_types[field.get_internal_type()]
KeyError: 'ArrayField'
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/30800>
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