Assisting query and querying
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United States of America Patent
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Nov 7, 2017
Grant Date -
Jun 11, 2015
app pub date -
Oct 31, 2012
filing date -
Dec 30, 2011
priority date (Note) -
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Abstract
A method for assisting query comprises acquiring a record that includes a unique identification and at least one piece of dimension information associated with the unique identification, wherein each piece of dimension information includes a sequence of attributes, each attribute being ordered in the sequence in accordance with a hierarchically progressive relation; calculating a hash value for an attribute pair comprising attributes of every two neighboring levels; and storing, in association with the hash value, the unique identification in at least one storage device. A method for querying comprises receiving a query; calculating one or more hash values; in response to the one or more hash values matching stored hash values in at least one storage device; deriving an intersection of unique identifications that are stored in association with the matched stored hash values; and returning at least one unique identification included in the intersection as a query result.
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