Range query would be enough for me, is there an example? which api I can call for this?
Thanks, Nan On Tue, Feb 12, 2019 at 6:17 PM Matthias J. Sax <matth...@confluent.io> wrote: > You could do a range query from "abc" to "abd" for example (in this > case, you would need to make sure to check the result form the iterator > and drop "abd" though). > > Note, that range queries are executed on the raw bytes. Thus, you need > to understand how the serializes you use work. In doubt, you may want to > use conservative ranges and apply a filter on the iterator to ignore > false positives. > > Also, this only work for prefix queries, ie, if you query with a know > prefix of the key. > > Hope this helps. > > -Matthias > > On 2/12/19 8:25 AM, Nan Xu wrote: > > Hi, > > > > Just wondering if there is a way to do a sql like "select key, > > value.fieild1 from ktable where key like abc%" > > The purpose of this to select some value from a ktable without a > fully > > defined key. Store.all then filter on them would be very inefficient if > > store is big. > > > > Thanks, > > Nan > > > >
