[TYPO3-core] RFC: #10201: Duplicate cHash Values

Dan Osipov dosipov at phillyburbs.com
Wed Mar 4 17:37:45 CET 2009


For the unique DB ID, 1) it needs another table & query 2) for large 
sites, the ID will be as large as the hash - so what's the point?

Dan Osipov
Calkins Media
http://danosipov.com/blog/

Franz Koch wrote:
> Hi,
>>> What does core team think about it?
>>>
>>> I am in favor of using full md5(). It is correct from formal point of 
>>> view. The only drawbacks that I see are:
>>> - longer URLs
>>> - sometimes 404 because of the wrong cHash if followed from Google
>>>
>>
>> i thought abot this and reread all BT entries concerning existing 
>> problems with cHash. shortMD5 isn't unique, md5 is, so i'm for using 
>> full md5. There are still some other problems remaining with empty 
>> parameters, where a cHash should be generated too, but this is another 
>> issue. But solving this one, the other problems should be solved too 
>> as they are all related.
> 
> how about only appending a unique DB uid of stored cHashes to the URLs? 
> Just as idea for getting nicer URLs in case of using full md5 hashes - 
> haven't really thought about the pros and cons yet.
> 


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