Method and apparatus for querying data in database
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United States of America Patent
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Aug 21, 2018
Grant Date -
Sep 24, 2015
app pub date -
Mar 23, 2015
filing date -
Mar 21, 2014
priority date (Note) -
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Abstract
A method and an apparatus for querying data in a database, and the method includes: receiving a query instruction; determining a status of each block index in a block index set prestored in a global memory of a GPU; when each block index in the global memory of the GPU is in an asynchronous state, starting one or more GPU processes to filter the block index in the global memory of the GPU according to a query condition, to obtain a first block index query result; and determining a final data query result according to the first block index query result. In this method, querying is performed by directly using a GPU process, thereby omitting a process of repeatedly copying partitioned data from a memory in the prior art, shortening query time, and improving query efficiency.
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