Github user kumarvishal09 commented on a diff in the pull request: https://github.com/apache/incubator-carbondata/pull/194#discussion_r83546183 --- Diff: core/src/main/java/org/apache/carbondata/scan/filter/FilterUtil.java --- @@ -1426,4 +1423,25 @@ private static void getUnknownExpressionsList(Expression expression, getUnknownExpressionsList(child, lst); } } + /** + * 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 compare(Double d1, Double d2) { + if ((d1.doubleValue() == d2.doubleValue()) || (Double.isNaN(d1) && Double.isNaN(d2))) { + return 0; + } + if (d1 < d2) { --- End diff -- can't we add else if and else why three if condition is required??
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