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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-114) Add Hints so that user can select whether to use "avoid seek optimization" or not
Date Thu, 06 Mar 2014 03:57:46 GMT
Anoop Sam John created PHOENIX-114:
--------------------------------------

             Summary: Add Hints so that user can select whether to use "avoid seek optimization"
or not
                 Key: PHOENIX-114
                 URL: https://issues.apache.org/jira/browse/PHOENIX-114
             Project: Phoenix
          Issue Type: Bug
            Reporter: Anoop Sam John
            Assignee: Anoop Sam John


PHOENIX-29 added a new optimization in which we wont use HBase side ExplicitColumnTracker
and seeks to columns (When query selects selective columns). This will be useful when there
are less number of columns/versions whic are excluded.  But when there are many column/versions
which can be skipped (If the seeks can jump over some HFile blocks) the old way will be better.
This issue adds two Hints in select for the user to explicitely tell whether to use the column
seek model or non seek model




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