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by jgalt212 4621 days ago
How would they know this for sure if they are only supposed to be storing searches for 18 months?
4 comments
carbocation 4621 days ago
A Bloom filter, for example, would permit them to know this without retaining any searches.
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3pt14159 4621 days ago
Or even statistical sampling.
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skj 4621 days ago
When we're talking about billions of queries per day, aggregate data is the only kind of data that is worth anything.
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tonyfelice 4621 days ago
I'm sure they are storing term volume indefinitely, considering google.com/trends.
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vdaniuk 4621 days ago
They are anonymizing queries after 18 months, not deleting them.
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