Hi Erik, Thank you so much for your response. It's something wrong in the email and I can't get the attached file. Could you send it again, please ? (or you could send it directly to me [email protected])
I understand upcoming Hfile data structure and how it's column-oriented. Thank you again for your good explanation ! Thanks, Hiroyuki Yamada --- Erik Holstad <[email protected]> wrote: > Hi Hiro! > > I attached a version of the current system layout, > things will change a the > lowest level for 0.20 > but the other things should stay the same. > > At the very bottom we are going to have something > called a Hfile which is > basically a list of > something called KeyValues. The KeyValues are a byte > [] including the key, > row/family/column/timetsamp/type, and the value. > What makes it column > oriented at this level > is that families are physically stored together. > Depending on how big a row > is you can different > number of rows covered in a storefile. > > Hope this helps. > > Regards Erik >
