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From "jiezouSH (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KYLIN-4012) optimize cache in TrieDictionary/TrieDictionaryForest
Date Thu, 23 May 2019 10:01:00 GMT
jiezouSH created KYLIN-4012:
-------------------------------

             Summary: optimize cache in TrieDictionary/TrieDictionaryForest
                 Key: KYLIN-4012
                 URL: https://issues.apache.org/jira/browse/KYLIN-4012
             Project: Kylin
          Issue Type: Improvement
    Affects Versions: v2.5.0
            Reporter: jiezouSH
            Assignee: jiezouSH


Currently, 

CacheDictionary, parent class of TrieDictionary and TrieDictionaryForest, has 3 cache: 

valueToIdCache, 

idToValueCache, 

idToValueByteCache.

However, The function of idToValueCache and idToValueByteCache is highly duplicated.

It is better to merge idToValueCache and idToValueByteCache, saving memory in about half
the dict's physical size



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