diff options
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/models/fields.txt | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/docs/ref/models/fields.txt b/docs/ref/models/fields.txt index d460e81ef4..4fb39fde82 100644 --- a/docs/ref/models/fields.txt +++ b/docs/ref/models/fields.txt @@ -617,9 +617,11 @@ The default form widget for this field is a :class:`~django.forms.TextInput`. .. attribute:: CharField.max_length - Required. The maximum length (in characters) of the field. The max_length + The maximum length (in characters) of the field. The ``max_length`` is enforced at the database level and in Django's validation using - :class:`~django.core.validators.MaxLengthValidator`. + :class:`~django.core.validators.MaxLengthValidator`. It's required for all + database backends included with Django except PostgreSQL, which supports + unlimited ``VARCHAR`` columns. .. note:: @@ -628,6 +630,10 @@ The default form widget for this field is a :class:`~django.forms.TextInput`. ``max_length`` for some backends. Refer to the :doc:`database backend notes </ref/databases>` for details. + .. versionchanged:: 4.2 + + Support for unlimited ``VARCHAR`` columns was added on PostgreSQL. + .. attribute:: CharField.db_collation Optional. The database collation name of the field. |