i.e. the operator is a function:
my_binary = column('foo') == column('bar')
my_new_binary = my_binary.operator(my_binary.left, my_binary.right)
make sense ?
Hinrich Winther wrote:
> Maybe there is a better way of doing it. To be exact:
>
> I want to disassemble a given _BinaryExpression into basic elements (a
> list of strings, arrays, integers ...) and reassemble it somewhere
> else out of this basic elements.
>
>
>
>
>
> On 01.04.2009, at 18:14, Michael Bayer wrote:
>
>>
>> Hinrich Winther wrote:
>>> Hi,
>>>
>>> I need to generate a sqlalchemy.sql.expression._BinaryExpression by
>>> hand. So I looked into the docu and found that I need a left, right
>>> and a operator. I am stuck at the left :) type() says it is a
>>> sqlalchemy.sql.util.AnnotatedColumn. But I can't find the class
>>> definition anywhere in sqlalchemy. Where is it defined?
>>>
>>
>>
>> if you just say column('foo') == column('bar') (column is
>> sqlalchemy.sql.column), you've got a _BinaryExpression. there
>> shouldn't
>> be a need to access _BinaryExpression directly.
>>
>>
>>
>> >>
>
>
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