主权项 |
1. A method comprising:
accessing, at a first query processing server, a query for data of a table comprising a plurality of columns and a plurality of rows, wherein:
the table has been partitioned into a plurality of column chunks by independently partitioning each column of the table into two or more column chunks; andthe plurality of column chunks have been distributed and stored across a plurality of storage servers; transforming, by the first query processing server, the query into a plurality of sub-queries; distributing, by the first query processing server, the plurality of sub-queries to a plurality of second query processing servers; receiving, at the first query processing server, the data from the plurality of second query processing servers; and transmitting, by the first computing device, the data in response to the query. |