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From "Maryann Xue (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-1851) Implement PhoenixMetadataFactory in Phoenix/Calcite Integration
Date Mon, 13 Apr 2015 15:29:12 GMT
Maryann Xue created PHOENIX-1851:
------------------------------------

             Summary: Implement PhoenixMetadataFactory in Phoenix/Calcite Integration
                 Key: PHOENIX-1851
                 URL: https://issues.apache.org/jira/browse/PHOENIX-1851
             Project: Phoenix
          Issue Type: Sub-task
            Reporter: Maryann Xue


The MetadataFactory is to provide information required for calculating cost for RelNode instances.
It includes row count, selectivity, distinct row count, etc. Some of the information may be
already available from existing Phoenix statistics, and we will have to enhance Phoenix statistics
to implement the rest.



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