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Why is this an invalid hash function?
Posted by: avi weiss
Date: May 12, 2006 08:04AM

I want to have a hash value that is based on the full date, so I created this function, where pl_datetime is a datetime type:

date_add(pl_datetime, interval 0 day)+0

this functino appears to returm an int (ie 20060511), so not sure why that isnt valid, unless it is too large.

any help would be helpful

-avi

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Why is this an invalid hash function?
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