I'll try that, thanks Mikael.S On Tue, Nov 29, 2011 at 1:45 AM, lars hofhansl <[email protected]> wrote:
> Seems like KeyOnlyFilter is what is needed here. > > It'll filter the value, but leave the entire key (rowKey, CF, column, TS, > type) in place. > > > Note that scanning with KeyOnlyFilter is not necessarily faster, the only > part saved is shipping the value to the client. > > -- Lars > > > ----- Original Message ----- > From: Michel Segel <[email protected]> > To: "[email protected]" <[email protected]> > Cc: "[email protected]" <[email protected]> > Sent: Monday, November 28, 2011 1:21 PM > Subject: Re: getting row info without data > > Doesn't sound like it... He mentions column names... > sounds like he would be better off writing to two tables. One that stores > only the column name and one that stores the data in each column. > > > Sent from a remote device. Please excuse any typos... > > Mike Segel > > On Nov 28, 2011, at 11:54 AM, Stack <[email protected]> wrote: > > > On Mon, Nov 28, 2011 at 8:54 AM, Mikael Sitruk <[email protected]> > wrote: > >> Hi > >> > >> I would like to know if it is possible to retrieve the columns name and > not > >> the whole content of rows. > >> The reason for such request is that the columns store high volumn of > data > >> (2K) each (and i store 900 columns per key). > >> Retrieving the whole row and not the "Description/Metadata" of the row > is > >> in this case very expensive. > >> > > > > Will > http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/filter/KeyOnlyFilter.html > > work for you? > > St.Ack > > > > -- Mikael.S
