diff options
Diffstat (limited to 'lib/sqlalchemy/sql/expression.py')
| -rw-r--r-- | lib/sqlalchemy/sql/expression.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 8a92dba0d..4b8df74c6 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -428,8 +428,8 @@ def case(whens, value=None, else_=None): The expressions used for THEN and ELSE, when specified as strings, will be interpreted as bound values. To specify textual SQL expressions - for these, use the literal_column(<string>) or - text(<string>) construct. + for these, use the :func:`literal_column` + construct. The expressions used for the WHEN criterion may only be literal strings when "value" is @@ -2436,7 +2436,7 @@ class _TextClause(Executable, ClauseElement): if self.typemap is not None and len(self.typemap) == 1: return list(self.typemap)[0] else: - return None + return sqltypes.NULLTYPE def self_group(self, against=None): if against is operators.in_op: |