[GitHub] incubator-carbondata pull request #339: [CARBONDATA-429][WIP] Remove unneces...

[piaoyats <gi...@git.apache.org>]

Github user piaoyats commented on a diff in the pull request:

    https://github.com/apache/incubator-carbondata/pull/339#discussion_r92331735
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/cache/dictionary/ReverseDictionaryCache.java ---
    @@ -167,12 +167,9 @@ private Dictionary getDictionary(
           DictionaryColumnUniqueIdentifier dictionaryColumnUniqueIdentifier)
           throws CarbonUtilException {
         Dictionary reverseDictionary = null;
    -    // create column dictionary info object only if dictionary and its
    -    // metadata file exists for a given column identifier
    -    if (!isFileExistsForGivenColumn(dictionaryColumnUniqueIdentifier)) {
    -      throw new CarbonUtilException(
    -          "Either dictionary or its metadata does not exist for column identifier :: "
    -              + dictionaryColumnUniqueIdentifier.getColumnIdentifier());
    +    // create column dictionary info object only if it is primitive type.
    +    if (dictionaryColumnUniqueIdentifier.getDataType().isComplexType()) {
    +      return null;
    --- End diff --
    
    I am not sure this condition check is right or not? Maybe we still need to do dictionary encoding for complex type?
    @QiangCai  pls review this logic


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