/*额度释放方案, 添加是否默认字段*/
IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_ER_AMOUNTFREED' AND KSQL_COL_NAME ='FISDEFAULT') 
 ALTER TABLE T_ER_AMOUNTFREED ADD (FISDEFAULT CHAR(1) DEFAULT '0' NOT NULL );