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Diffstat (limited to 'lib/sqlalchemy/sql/schema.py')
| -rw-r--r-- | lib/sqlalchemy/sql/schema.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/schema.py b/lib/sqlalchemy/sql/schema.py index 55d0b74e6..2c5daa17c 100644 --- a/lib/sqlalchemy/sql/schema.py +++ b/lib/sqlalchemy/sql/schema.py @@ -2505,7 +2505,10 @@ class ColumnCollectionMixin(object): for expr in expressions: strname = None column = None - if not isinstance(expr, ClauseElement): + if hasattr(expr, '__clause_element__'): + expr = expr.__clause_element__() + + if not isinstance(expr, (ColumnElement, TextClause)): # this assumes a string strname = expr else: |