About measure in carbon

Posted by cenyuhai on Dec 04, 2016; 7:10am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/About-measure-in-carbon-tp3627.html

Hi, all:
    I find the following codes in carbon CarbonCommonConstans.java. What does these measures mean？    Can I add a type for SHORT_VALUE_MEASURE = 's' ?





/**
 * DOUBLE_VALUE_MEASURE
 */
public static final char SUM_COUNT_VALUE_MEASURE = 'n';
/**
 * BYTE_VALUE_MEASURE
 */
public static final char BYTE_VALUE_MEASURE = 'c';
/**
 * BIG_DECIMAL_MEASURE
 */
public static final char BIG_DECIMAL_MEASURE = 'b';

/**
 * BIG_INT_MEASURE
 */
public static final char BIG_INT_MEASURE = 'l';