Reverse scan is slower compared to forward scan. Depending on access pattern, storing int field in decreasing order may be desirable.
Cheers On Mar 27, 2014, at 4:54 AM, haosdent <[email protected]> wrote: > 0.94 also support reverse scan. > > https://issues.apache.org/jira/browse/HBASE-4811?focusedCommentId=13839323&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13839323 > > > On Thu, Mar 27, 2014 at 4:58 PM, Li Li <[email protected]> wrote: > >> great feature but I am using 0.94 now >> >> On Thu, Mar 27, 2014 at 4:49 PM, haosdent <[email protected]> wrote: >>> How about Reverse Scan? https://issues.apache.org/jira/browse/HBASE-4811 >>> >>> >>> On Thu, Mar 27, 2014 at 4:24 PM, Li Li <[email protected]> wrote: >>> >>>> my rowkey is <strField,intField> >>>> I want to scan it by decreasing order of the int field, how to make it >>>> reversed? >>>> if the row key is Bytes.toBytes(intField) + Bytes.toBytes(strField), >>>> then the order is increasing. >>>> one solution is replace intField with -intField. but if >>>> intField==Integer.MIN_VALUE, what will happen? >>> >>> >>> >>> -- >>> Best Regards, >>> Haosdent Huang > > > > -- > Best Regards, > Haosdent Huang
