1. A method comprising: copying a bit-vector into a first subregister and a second subregister, wherein the first subregister and the second subregister are subregisters in a single SIMD register; performing a shift operation that: shifts bits in the first subregister by a first value that corresponds with a first column value in a first row of a particular column in a database table, and shifts bits in the second subregister by a second value that corresponds with a second column value in a second row of the particular column in the database table; after performing the shift operation: determining whether the first column value satisfies a search condition based on a first bit at a particular position in the first subregister; and determining whether the second column value satisfies the search condition based on a second bit in the single SIMD register at the particular position in the second subregister.