sqlalchemy.sql.operators.custom

class documentation

class custom_op(OperatorType, Generic[_T]): (source)

Represent a 'custom' operator. :class:`.custom_op` is normally instantiated when the :meth:`.Operators.op` or :meth:`.Operators.bool_op` methods are used to create a custom operator callable. The class can also be used directly when programmatically constructing expressions. E.g. to represent the "factorial" operation:: from sqlalchemy.sql import UnaryExpression from sqlalchemy.sql import operators from sqlalchemy import Numeric unary = UnaryExpression(table.c.somecolumn, modifier=operators.custom_op("!"), type_=Numeric) .. seealso:: :meth:`.Operators.op` :meth:`.Operators.bool_op`

Method	`__call__`	Undocumented
Method	`__eq__`	Undocumented
Method	`__hash__`	Undocumented
Method	`__init__`	Undocumented
Class Variable	`__name__`	Undocumented
Class Variable	`__slots__`	Undocumented
Instance Variable	`eager_grouping`	Undocumented
Instance Variable	`is_comparison`	Undocumented
Instance Variable	`natural_self_precedent`	Undocumented
Instance Variable	`opstring`	Undocumented
Instance Variable	`precedence`	Undocumented
Instance Variable	`python_impl`	Undocumented
Instance Variable	`return_type`	Undocumented

def __call__(self, left: Operators, right: Optional[Any] = None, *other: Any, **kwargs: Any) -> Operators: (source) ¶

overrides sqlalchemy.sql.operators.OperatorType.__call__

Undocumented

def __eq__(self, other: Any) -> bool: (source) ¶

Undocumented

def __hash__(self) -> int: (source) ¶

Undocumented

def __init__(self, opstring: str, precedence: int = 0, is_comparison: bool = False, return_type: Optional[Union[Type[TypeEngine[_T]], TypeEngine[_T]]] = None, natural_self_precedent: bool = False, eager_grouping: bool = False, python_impl: Optional[Callable[..., Any]] = None): (source) ¶

Undocumented

__name__: str = (source) ¶

overrides sqlalchemy.sql.operators.OperatorType.__name__

Undocumented

__slots__: tuple[str, ...] = (source) ¶

overrides sqlalchemy.sql.operators.OperatorType.__slots__

Undocumented

eager_grouping = (source) ¶

Undocumented

is_comparison = (source) ¶

Undocumented

natural_self_precedent = (source) ¶