[GitHub] incubator-carbondata pull request #194: [CARBONDATA-270] Double data type va...

[qiuchenjian-2]

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

    https://github.com/apache/incubator-carbondata/pull/194#discussion_r90466152
 
    --- Diff: core/src/main/java/org/apache/carbondata/core/util/DataTypeUtil.java ---
    @@ -411,4 +411,24 @@ private static String parseStringToBigDecimal(String value, CarbonDimension dime
         }
         return null;
       }
    +  /**
    +   * This method will compare double values it will preserve
    +   * the -0.0 and 0.0 equality as per == ,also preserve NaN equality check as per
    +   * java.lang.Double.equals()
    +   *
    +   * @param d1 double value for equality check
    +   * @param d2 double value for equality check
    +   * @return boolean after comparing two double values.
    +   */
    +  public static int compareDoubleWithNan(Double d1, Double d2) {
    +    if ((d1.doubleValue() == d2.doubleValue()) || (Double.isNaN(d1) && Double.isNaN(d2))) {
    +      return 0;
    +    }
    +    else if (d1 < d2) {
    --- End diff --
   
    move to previous line


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