diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index 5c7a29f99..f526203ac 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -1934,16 +1934,22 @@ class SQLCompiler(Compiled): if not stmt._has_multi_parameters else "%s_0" % c.key ) - elif c.primary_key and implicit_returning: - self.returning.append(c) - value = self.process(value.self_group(), **kw) - elif implicit_return_defaults and \ - c in implicit_return_defaults: - self.returning.append(c) - value = self.process(value.self_group(), **kw) else: - self.postfetch.append(c) - value = self.process(value.self_group(), **kw) + if isinstance(value, elements.BindParameter) and \ + value.type._isnull: + value = value._clone() + value.type = c.type + + if c.primary_key and implicit_returning: + self.returning.append(c) + value = self.process(value.self_group(), **kw) + elif implicit_return_defaults and \ + c in implicit_return_defaults: + self.returning.append(c) + value = self.process(value.self_group(), **kw) + else: + self.postfetch.append(c) + value = self.process(value.self_group(), **kw) values.append((c, value)) elif self.isinsert: |