[GitHub] incubator-carbondata pull request #659: [CARBONDATA-781] Store one SegmentPr...

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

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

    https://github.com/apache/incubator-carbondata/pull/659#discussion_r108033699
  
    --- Diff: core/src/main/java/org/apache/carbondata/core/datastore/block/SegmentTaskIndex.java ---
    @@ -16,30 +16,52 @@
      */
     package org.apache.carbondata.core.datastore.block;
     
    +import java.util.HashMap;
     import java.util.List;
    +import java.util.Map;
     
     import org.apache.carbondata.core.datastore.BTreeBuilderInfo;
     import org.apache.carbondata.core.datastore.BtreeBuilder;
     import org.apache.carbondata.core.datastore.impl.btree.BlockBTreeBuilder;
    +import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier;
     import org.apache.carbondata.core.metadata.blocklet.DataFileFooter;
     
     /**
      * Class which is responsible for loading the b+ tree block. This class will
      * persist all the detail of a table segment
      */
     public class SegmentTaskIndex extends AbstractIndex {
    +  private static Map<SegmentKey, SegmentProperties> segmentPropertiesCached =
    --- End diff --
    
    why not use TableSegmentUniqueIdentifier?


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