[ZODB-Dev] Re: Problem Storing Infinity

[Jim Fulton]

On Sep 12, 2006, at 4:42 PM, Tres Seaver wrote:

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> Jim Fulton wrote:
>>
>> On Sep 12, 2006, at 3:07 PM, Tim Peters wrote:
>>
>>> [David Binger]
>>>>>> That's interesting.
>>>>>> It appears that pickle protocol 2 chokes on inf.
>>>
>>> [Tim Peters]
>>>>> As above.  BTW, why protocol 2 specifically?  Protocols 1 and 2  
>>>>> treat
>>>>> floats the same way.
>>>
>>> [David]
>>>> I was thinking that the default protocol is 1, but I see
>>>> now that the default is 0.
>>>
>>> Strange, eh?  Since only protocol 0 existed at first, I suppose this
>>> was a nod to backward compatibility.
>>
>> Plus version 0 pickles are more readable. :)  Honestly.
>
> The verbosity comes at a non-trival price in high-write scenarios.

Sure. That's why we invented protocol 1 as part of the cPickle effort
and why we use it in ZODB.

> Being able to compress away the class name of 'OOBucket', for  
> instance,
> could reduce the amount of crap slung throgh the network by a lot.

Yeah, which protocol 2 would let us do.

Jim

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