Hackathon / Multidimensional keys / Wildcard deletes

[Tobias Lütke]

This sounds truly brilliant.

On 7/6/07, Jan Miczaika <jan at hitflip.de> wrote:
> Hello,
>
> I saw these proposed features for the Hackathon. Unfortunately I can't take in person, wrong continent for me.
>
> I would like to suggest a feature which would probably address these issues well: tagging keys. Each key would have 0...n tags assigned to
> it. Flushing keys could be done by asking memcached to flush all keys with a certain tag.
>
> The usage scenario: lets say we have a DVD. We have a number of keys related to this dvd, maybe recommendations, comments, categorization
> etc. I could tag each of these keys with the id of the DVD (dvd:1234). Then I would tell memcached to flush all keys with the tag dvd:1234,
> causing the database to recalculate all data relating to dvd 1234 on the next access.
>
> Zend implemented similar functionality in their new framework:
> http://framework.zend.com/manual/en/zend.cache.theory.html#zend.cache.tags
>
> The wildcard deletes could be done this way, more efficiently than looping through the whole cache to see if a regex matches. Multidimensional arrays could be partially simulated by using tags.
>
> I hope someone is interested ;-)
>
> Cheers
>
> Jan
>
>
>
>
>
> --
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>
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Tobi
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