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Diffstat (limited to 'doc/build/changelog/changelog_10.rst')
| -rw-r--r-- | doc/build/changelog/changelog_10.rst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/build/changelog/changelog_10.rst b/doc/build/changelog/changelog_10.rst index 4b3a17367..95eaff0f1 100644 --- a/doc/build/changelog/changelog_10.rst +++ b/doc/build/changelog/changelog_10.rst @@ -24,6 +24,23 @@ .. change:: :tags: feature, schema + :tickets: 3282 + + The DDL generation system of :meth:`.MetaData.create_all` + and :meth:`.MetaData.drop_all` has been enhanced to in most + cases automatically handle the case of mutually dependent + foreign key constraints; the need for the + :paramref:`.ForeignKeyConstraint.use_alter` flag is greatly + reduced. The system also works for constraints which aren't given + a name up front; only in the case of DROP is a name required for + at least one of the constraints involved in the cycle. + + .. seealso:: + + :ref:`feature_3282` + + .. change:: + :tags: feature, schema Added a new accessor :attr:`.Table.foreign_key_constraints` to complement the :attr:`.Table.foreign_keys` collection, |