diff options
| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2017-02-20 16:54:07 -0500 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2017-02-22 17:07:15 -0500 |
| commit | 01db0381184a82cad784d6e03739a00fe45add44 (patch) | |
| tree | cef286d1ebf0c0b33572685cc56ac8d58ca9be99 /docs | |
| parent | 62f2739e828a8fa31cfa955003acc44c9d042712 (diff) | |
| download | alembic-01db0381184a82cad784d6e03739a00fe45add44.tar.gz | |
Add ExcludeConstraint support for Postgresql
Add full support for Postgresql add_exclude_constraint().
This opens up more of the operations API and serves as a
model for other dialect-specific constraints.
Additionally, gracefully degrade if a given constraint
class is not supported with a warning.
Fixes: #412
Change-Id: I0fb89c840518aaeae97929919356f944479bc756
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/build/autogenerate.rst | 6 | ||||
| -rw-r--r-- | docs/build/changelog.rst | 15 |
2 files changed, 19 insertions, 2 deletions
diff --git a/docs/build/autogenerate.rst b/docs/build/autogenerate.rst index d0fce8a..d1ae069 100644 --- a/docs/build/autogenerate.rst +++ b/docs/build/autogenerate.rst @@ -174,8 +174,10 @@ Autogenerate **can not detect**: Autogenerate can't currently, but **will eventually detect**: -* Some free-standing constraint additions and removals, - like CHECK, PRIMARY KEY - these are not fully implemented. +* Some free-standing constraint additions and removals may not be supported, + including PRIMARY KEY, EXCLUDE, CHECK; these are not necessarily implemented + within the autogenerate detection system and also may not be supported by + the supporting SQLAlchemy dialect. * Sequence additions, removals - not yet implemented. diff --git a/docs/build/changelog.rst b/docs/build/changelog.rst index caf3f90..56c9143 100644 --- a/docs/build/changelog.rst +++ b/docs/build/changelog.rst @@ -26,6 +26,21 @@ Changelog function can be used among other things to place a complete :class:`.MigrationScript` structure in place. + .. change:: 412 + :tags: feature, postgresql + :tickets: 412 + + Added support for Postgresql EXCLUDE constraints, including the + operation directive :meth:`.Operations.create_exclude_constraints` + as well as autogenerate render support for the ``ExcludeConstraint`` + object as present in a ``Table``. Autogenerate detection for an EXCLUDE + constraint added or removed to/from an existing table is **not** + implemented as the SQLAlchemy Postgresql dialect does not yet support + reflection of EXCLUDE constraints. + + Additionally, unknown constraint types now warn when + encountered within an autogenerate action rather than raise. + .. change:: fk_schema_compare :tags: bug, operations |