diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index 529e28ba6..57da43217 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -1058,6 +1058,12 @@ class SQLCompiler(Compiled): self._emit_empty_in_warning() return self.process(binary.left == binary.left) + def visit_empty_set_expr(self, type_): + raise NotImplementedError( + "Dialect '%s' does not support empty set expression." % + self.dialect.name + ) + def visit_binary(self, binary, override_operator=None, eager_grouping=False, **kw): |