Make metadata as partition key and x,y as part of partition key i.e. Primary key. It should work
Sent from my iPhone > On May 5, 2017, at 2:40 PM, Lydia <ickle...@googlemail.com> wrote: > > Hi all, > > I am new to Apache Cassandra and I would like to get some advice on how to > tackle a table creation / indexing in a sophisticated way. > > My aim is to store x- and y-coordinates, accompanied by some columns with > meta information (m1, ... ,m5). There will be around 100,000,000 rows > overall. Some rows might have the same (x,y) pairs but always distinct meta > information. > > In the end I want to do a rather simple range query in the form of e.g. (0 >= > x <= 1) AND (0 >= y <= 1). > > What would be the best choice of variables to set as primary key, partition > key. Or should I use a index? And if so on what column(s)? > > Thanks in advance! > Best regards, > Lydia > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org > For additional commands, e-mail: user-h...@cassandra.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
