James Taylor created PHOENIX-3907:
-------------------------------------

             Summary: Use LATEST_TIMESTAMP when UPDATE_CACHE_FREQUENCY is not 
zero
                 Key: PHOENIX-3907
                 URL: https://issues.apache.org/jira/browse/PHOENIX-3907
             Project: Phoenix
          Issue Type: Bug
            Reporter: James Taylor


Currently with UPDATE_CACHE_FREQUENCY, we'll use LATEST_TIMESTAMP *most* of the 
time, until the cached entity expires, in which case we'll use the server 
timestamp. This seems a bit strange and inconsistent. We should instead always 
use LATEST_TIMESTAMP if UPDATE_CACHE_FREQUENCY is non zero, with the exception 
of the corner case for UPSERT SELECT and DELETE where the same table is being 
read and written to (see changes to FromCompiler for PHOENIX-3823).



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