diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index dd2a6e08c..f1fe53b73 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -2415,7 +2415,9 @@ class GenericTypeCompiler(engine.TypeCompiler): return self.visit_VARCHAR(type_) def visit_null(self, type_): - raise NotImplementedError("Can't generate DDL for the null type") + raise exc.CompileError("Can't generate DDL for %r; " + "did you forget to specify a " + "type on this Column?" % type_) def visit_type_decorator(self, type_): return self.process(type_.type_engine(self.dialect)) |