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A comment on Slides and notes from my three hour Redis tutorial.

Re:Slides and notes from my three hour Redis tutorial by davidmathers on Monday April 26, 2010 @05:17AM (#1294463)
This is a good example of Redis forcing you to denormalise your data - each item that is tagged gets a set of tags, while each tag gets a set of item IDs.

Simon, not sure what you meant by "denormalise" here but what you've described sounds fully normal to me.

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Re:Slides and notes from my three hour Redis tutorial by simonw on Monday April 26, 2010 @05:38AM (#1294485)
It's up to you to manually maintain both of those sets, which means the information about what is tagged with what ends up stored twice and there's a risk that it could get out of sync.
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