1.工作流任务表ACT_HI_ACTINST表中增加任务处理原因，任务业务操作类型，任务业务操作日志，签收时间，任务owner5个子段，同时记录任务kpi数据
2.工作流任务表ACT_HI_TASKINST表中增加任务业务操作类型，任务业务操作日志

以下是增量脚本

mysql:
 
ALTER TABLE ACT_HI_TASKINST
 ADD COLUMN (BUSSINESS_OP  varchar(255));
ALTER TABLE ACT_HI_TASKINST
 ADD COLUMN (BUSSINESS_REMARK  varchar(2000));
 
ALTER TABLE ACT_HI_ACTINST
 ADD COLUMN (BUSSINESS_OP  NVARCHAR2(255));
ALTER TABLE ACT_HI_ACTINST
 ADD COLUMN (BUSSINESS_REMARK  NVARCHAR2(2000)); 
ALTER TABLE ACT_HI_ACTINST
 ADD COLUMN (DELETE_REASON_  NVARCHAR2(2000)); 
ALTER TABLE ACT_HI_ACTINST
 ADD COLUMN (OWNER_  NVARCHAR2(255)); 
 
   ALTER TABLE ACT_HI_ACTINST
 ADD COLUMN (CLAIM_TIME_  TIMESTAMP(6)); 
 
oracle：
ALTER TABLE ACT_HI_TASKINST
 ADD (BUSSINESS_OP  NVARCHAR2(255));
ALTER TABLE ACT_HI_TASKINST
 ADD (BUSSINESS_REMARK  NVARCHAR2(2000));
 
 ALTER TABLE ACT_HI_ACTINST
 ADD (BUSSINESS_OP  NVARCHAR2(255));
ALTER TABLE ACT_HI_ACTINST
 ADD (BUSSINESS_REMARK  NVARCHAR2(2000));
 ALTER TABLE ACT_HI_ACTINST
 ADD (DELETE_REASON_  NVARCHAR2(2000)); 
 
 ALTER TABLE ACT_HI_ACTINST
 ADD (OWNER_  NVARCHAR2(255)); 
 
  ALTER TABLE ACT_HI_ACTINST
 ADD (CLAIM_TIME_  TIMESTAMP(6));