dbbase.column_types.WriteOnlyColumn.all_

WriteOnlyColumn.all_()

Produce a _expression.all_() clause against the parent object.

This operator is only appropriate against a scalar subquery object, or for some backends an column expression that is against the ARRAY type, e.g.:

# postgresql '5 = ALL (somearray)'
expr = 5 == mytable.c.somearray.all_()

# mysql '5 = ALL (SELECT value FROM table)'
expr = 5 == select([table.c.value]).as_scalar().all_()

See also

_expression.all_() - standalone version

_expression.any_() - ANY operator

New in version 1.1.