Lars, It works perfectly (and reduce time to get data :-)) Thanks, Mikael.S
On Tue, Nov 29, 2011 at 8:03 AM, Mikael Sitruk <[email protected]>wrote: > 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 > > -- Mikael.S
