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From: jackylk <git@git.apache.org>
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Subject: [GitHub] carbondata pull request #1146: [CARBONDATA-1286] Change Query related RDD to...
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Message-Id: <20170711052526.A318FE102F@git1-us-west.apache.org>
Date: Tue, 11 Jul 2017 05:25:26 +0000 (UTC)
archived-at: Tue, 11 Jul 2017 05:25:28 -0000

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

    https://github.com/apache/carbondata/pull/1146#discussion_r126598388
  
    --- Diff: hadoop/src/main/java/org/apache/carbondata/hadoop/CarbonInputFormat.java ---
    @@ -101,51 +109,50 @@
       private static final String FILTER_PREDICATE =
           "mapreduce.input.carboninputformat.filter.predicate";
       private static final String COLUMN_PROJECTION = "mapreduce.input.carboninputformat.projection";
    -  private static final String CARBON_TABLE = "mapreduce.input.carboninputformat.table";
    +  private static final String TABLE_INFO = "mapreduce.input.carboninputformat.tableinfo";
       private static final String CARBON_READ_SUPPORT = "mapreduce.input.carboninputformat.readsupport";
     
    +  // a cache for carbon table, it will be used in task side
    +  private CarbonTable carbonTable;
    +
       /**
    -   * It is optional, if user does not set then it reads from store
    -   *
    -   * @param configuration
    -   * @param carbonTable
    -   * @throws IOException
    +   * Set the `tableInfo` in `configuration`
        */
    -  public static void setCarbonTable(Configuration configuration, CarbonTable carbonTable)
    +  public static void setTableInfo(Configuration configuration, TableInfo tableInfo)
           throws IOException {
    -    if (null != carbonTable) {
    -      configuration.set(CARBON_TABLE, ObjectSerializationUtil.convertObjectToString(carbonTable));
    +    if (null != tableInfo) {
    +      configuration.set(TABLE_INFO, ObjectSerializationUtil.convertObjectToString(tableInfo));
         }
       }
     
    -  public static CarbonTable getCarbonTable(Configuration configuration) throws IOException {
    -    String carbonTableStr = configuration.get(CARBON_TABLE);
    -    if (carbonTableStr == null) {
    -      populateCarbonTable(configuration);
    -      // read it from schema file in the store
    -      carbonTableStr = configuration.get(CARBON_TABLE);
    -      return (CarbonTable) ObjectSerializationUtil.convertStringToObject(carbonTableStr);
    -    }
    -    return (CarbonTable) ObjectSerializationUtil.convertStringToObject(carbonTableStr);
    +  /**
    +   * Get TableInfo object from `configuration`
    +   */
    +  private TableInfo getTableInfo(Configuration configuration) throws IOException {
    +    String tableInfoStr = configuration.get(TABLE_INFO);
    --- End diff --
    
    It is checked inside `convertStringToObject`


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