diff options
Diffstat (limited to 'lib/sqlalchemy/sql/expression.py')
| -rw-r--r-- | lib/sqlalchemy/sql/expression.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index bff086e4b..859ee0437 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -832,6 +832,14 @@ def tuple_(*expr): [(1, 2), (5, 12), (10, 19)] ) + .. warning:: + + The composite IN construct is not supported by all backends, + and is currently known to work on Postgresql and MySQL, + but not SQLite. Unsupported backends will raise + a subclass of :class:`~sqlalchemy.exc.DBAPIError` when such + an expression is invoked. + """ return _Tuple(*expr) |