diff options
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/models/options.txt | 6 | ||||
| -rw-r--r-- | docs/ref/models/querysets.txt | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/docs/ref/models/options.txt b/docs/ref/models/options.txt index 8fbf4b219e..e047a01f10 100644 --- a/docs/ref/models/options.txt +++ b/docs/ref/models/options.txt @@ -288,6 +288,12 @@ Django quotes column and table names behind the scenes. incurs a cost to your database. Each foreign key you add will implicitly include all of its default orderings as well. + If a query doesn't have an ordering specified, results are returned from + the database in an unspecified order. A particular ordering is guaranteed + only when ordering by a set of fields that uniquely identify each object in + the results. For example, if a ``name`` field isn't unique, ordering by it + won't guarantee objects with the same name always appear in the same order. + ``permissions`` --------------- diff --git a/docs/ref/models/querysets.txt b/docs/ref/models/querysets.txt index b632434456..d60b3a5866 100644 --- a/docs/ref/models/querysets.txt +++ b/docs/ref/models/querysets.txt @@ -387,6 +387,12 @@ query will be ordered by ``pub_date`` and not ``headline``:: incurs a cost to your database. Each foreign key you add will implicitly include all of its default orderings as well. + If a query doesn't have an ordering specified, results are returned from + the database in an unspecified order. A particular ordering is guaranteed + only when ordering by a set of fields that uniquely identify each object in + the results. For example, if a ``name`` field isn't unique, ordering by it + won't guarantee objects with the same name always appear in the same order. + ``reverse()`` ~~~~~~~~~~~~~ |