org.redkale.source.FilterFunc Maven / Gradle / Ivy
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package org.redkale.source;
/**
* 常见的SQL聚合函数
*
*
* 详情见: https://redkale.org
*
* @author zhangjx
*/
public enum FilterFunc {
AVG, //平均值
COUNT, //总数
DISTINCTCOUNT, //去重总数
MAX, //最大值
MIN, //最小值
SUM; //求和
public String getColumn(String col) {
if (this == DISTINCTCOUNT) return "COUNT(DISTINCT " + col + ")";
return this.name() + "(" + col + ")";
}
}