1. A method of database processing, comprising: storing, in a first memory associated with a first processing unit, data associated with a table having a plurality of columns, wherein the data is stored in the first memory as the plurality of columns; reading at least a portion of each of the stored plurality of columns with the first processing unit; forming one or more tuples of the table from the at least the portion of each of the columns using the first processing unit; and outputting, to a second memory associated with a second processing unit, the tuples for processing by the second processing unit.