hey thank you very much Alex for pointing me in right direction .
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Hi,
I am trying to use co processor to do some aggregations(eg topn) over all
versions of a cell and return it . I found most of the aggregation
implementation with coprocessors are done on column . how we can achieve for
every cell in that column ,any ideas ,links ???
Use case - if I want
Hi Navdeep,
I believe you will need to:
* implement RegionScanner that would apply aggregation on Cell level
* extend from BaseRegionObserver to force using your RegionScanner in
preGet and preScan
I don't have a simple example in front of me, but maybe the following will
give you some pointers.