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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2020-09-03 14:14:39 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2020-10-12 13:52:06 -0400 |
| commit | 9e82f32f274e649b04740c819d21ba232c89cfff (patch) | |
| tree | 15ba969d68aa914ffff413d1db3d2697761ba247 /examples | |
| parent | a3e2eb7c3c3fe6b2bebd14a7e9d661b2b4519d1f (diff) | |
| download | sqlalchemy-9e82f32f274e649b04740c819d21ba232c89cfff.tar.gz | |
Deprecate duplicated column names in Table definition
The :class:`_schema.Table` class now raises a deprecation warning
when columns with the same name are defined. To replace a column a new
parameter :paramref:`_schema.Table.append_column.replace_existing` was
added to the :meth:`_schema.Table.append_column` method.
The :meth:`_expression.ColumnCollection.contains_column` will now
raises an error when called with a string, suggesting the caller
to use ``in`` instead.
Co-authored-by: Federico Caselli <cfederico87@gmail.com>
Change-Id: I1d58c8ebe081079cb669e7ead60886ffc1b1a7f5
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/versioned_history/history_meta.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/examples/versioned_history/history_meta.py b/examples/versioned_history/history_meta.py index f2b3f8118..7d13f2d74 100644 --- a/examples/versioned_history/history_meta.py +++ b/examples/versioned_history/history_meta.py @@ -163,7 +163,8 @@ def _history_mapper(local_mapper): if not super_history_mapper: local_mapper.local_table.append_column( - Column("version", Integer, default=1, nullable=False) + Column("version", Integer, default=1, nullable=False), + replace_existing=True, ) local_mapper.add_property( "version", local_mapper.local_table.c.version |