diff options
Diffstat (limited to 'alembic/batch.py')
| -rw-r--r-- | alembic/batch.py | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/alembic/batch.py b/alembic/batch.py index 6e5dc75..1006739 100644 --- a/alembic/batch.py +++ b/alembic/batch.py @@ -58,12 +58,15 @@ class BatchOperationsImpl(object): else: m1 = MetaData() - existing_table = Table( - self.table_name, m1, - schema=self.schema, - autoload=True, - autoload_with=self.operations.get_bind(), - *self.reflect_args, **self.reflect_kwargs) + if self.copy_from is not None: + existing_table = self.copy_from + else: + existing_table = Table( + self.table_name, m1, + schema=self.schema, + autoload=True, + autoload_with=self.operations.get_bind(), + *self.reflect_args, **self.reflect_kwargs) batch_impl = ApplyBatchImpl( existing_table, self.table_args, self.table_kwargs) |