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From QiangCai <...@git.apache.org>
Subject [GitHub] carbondata pull request #916: [CARBONDATA-938] Prune partitions for filter q...
Date Fri, 19 May 2017 02:47:43 GMT
Github user QiangCai commented on a diff in the pull request:

    https://github.com/apache/carbondata/pull/916#discussion_r117394297
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/scan/filter/FilterExpressionProcessor.java
---
    @@ -137,6 +155,119 @@ public FilterResolverIntf getFilterResolver(Expression expressionTree,
       }
     
       /**
    +   * Get the map of required partitions
    +   * The value of "1" in BitSet represent the required partition
    +   * @param expressionTree
    +   * @param partitionInfo
    +   * @param partitioner
    +   * @return
    +   */
    +  @Override public BitSet getFilteredPartitions(Expression expressionTree,
    +      PartitionInfo partitionInfo, Partitioner partitioner) {
    +    return createPartitionFilterTree(expressionTree, partitionInfo).applyFilter(partitioner);
    +  }
    +
    +  /**
    +   * create partition filter by basing on pushed-down filter
    +   * @param expressionTree
    +   * @param partitionInfo
    +   * @return
    +   */
    +  public PartitionFilterIntf createPartitionFilterTree(Expression expressionTree,
    --- End diff --
    
    ok


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