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Diffstat (limited to 'lib/sqlalchemy/sql/expression.py')
| -rw-r--r-- | lib/sqlalchemy/sql/expression.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 082313724..9e920c34f 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -2902,6 +2902,12 @@ class BooleanClauseList(ClauseList, ColumnElement): def _select_iterable(self): return (self, ) + def self_group(self, against=None): + if not self.clauses: + return self + else: + return super(BooleanClauseList, self).self_group(against=against) + class _Tuple(ClauseList, ColumnElement): def __init__(self, *clauses, **kw): |