On Wed, Jan 8, 2014 at 11:50 AM, Mike Drob <[email protected]> wrote: > Duane, > > Most API methods for inserting values take byte arrays or byte sequences > directly. The lexographic order is based on the natural ordering of the > bytes, i.e. \x00 sorts before \x01. The methods that take strings will > assume UTF-8 encoding and convert for you. If you find a situation where > this is not the case, please let us know! > > The one exception to all of this is the timestamp part of the key, which > is stored in numeric order. I want to say that they are kept in reverse > order, but don't remember the exact details off hand. > Thats correct. The most recent timestamps are sorted first. Sorted as signed long.
> I'm on my phone, so finding the exact place where this is documented will > be a challenge, but I would expect it to be part of our user manual on > accumulo.apache.org > > Mike > On Jan 8, 2014 8:26 AM, "Cornish, Duane C." <[email protected]> > wrote: > >> Accumulo Users, >> >> >> >> I know Accumulo keys are sorted in lexicographical order in the tables. >> Where can I find the specification defining that order? For example, what >> lexicographical order are symbols in? Is the order the same as the >> numerical order of UTF-8 encoding, ASCII encoding, or some other encoding >> scheme? >> >> >> >> Thanks in advance, >> >> Duane Cornish >> >
