Hi John, say the column looks like this: 2 2 4
Then I want to OR all the bits in the column, so the result would be 6. Thanks Ben On Fri, Dec 10, 2010 at 10:24 AM, K. John Wu <[email protected]> wrote: > Hi, Ben, > > Would you mind elaborate on your question a bit? I am not sure what type of > "aggregate" you are referring to.. > > John > > > On 12/9/2010 1:01 PM, Ben WIlliams wrote: >> >> I have a similar question. Is there a way to OR all the bits in a >> column for an aggregate query? >> Thanks >> Ben >> >> On Mon, Nov 29, 2010 at 6:04 PM, K. John Wu<[email protected]> wrote: >>> >>> Hi, Teryl, >>> >>> There isn't a function that takes a set of bitvectors for bitwise AND >>> operations, but there is a function named ibis::index::sumBits that >>> performs bitwise OR on a std::vector of ibis::bitvectors. >>> >>> The class ibis::bitvector has two operators that performs bitwise OR >>> operations, they are |= and |. If you need a different form, let us >>> know, we might be able to accommodate. >>> >>> John >>> >>> >>> On 11/28/2010 1:10 PM, Teryl Taylor wrote: >>>> >>>> Hi everyone, >>>> >>>> Is there any API's to take a set of bitvectors and do a bitwise and >>>> with them? also is there another API which does a bitwise OR? >>>> >>>> >>>> Cheers, >>>> >>>> Teryl >>>> >>>> >>>> >>>> _______________________________________________ >>>> FastBit-users mailing list >>>> [email protected] >>>> https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users >>> >>> _______________________________________________ >>> FastBit-users mailing list >>> [email protected] >>> https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users >>> >> _______________________________________________ >> FastBit-users mailing list >> [email protected] >> https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users > _______________________________________________ FastBit-users mailing list [email protected] https://hpcrdm.lbl.gov/cgi-bin/mailman/listinfo/fastbit-users
