diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index 5fbc7d87f..e45db428a 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -1019,13 +1019,15 @@ class SQLCompiler(Compiled): "Unary expression has no operator or modifier") def visit_istrue_unary_operator(self, element, operator, **kw): - if self.dialect.supports_native_boolean: + if element._is_implicitly_boolean or \ + self.dialect.supports_native_boolean: return self.process(element.element, **kw) else: return "%s = 1" % self.process(element.element, **kw) def visit_isfalse_unary_operator(self, element, operator, **kw): - if self.dialect.supports_native_boolean: + if element._is_implicitly_boolean or \ + self.dialect.supports_native_boolean: return "NOT %s" % self.process(element.element, **kw) else: return "%s = 0" % self.process(element.element, **kw) |