-- 版本复制方案新增视图字段 可为空
IF NOT EXISTS (SELECT 1 FROM KSQL_USERCOLUMNS WHERE KSQL_COL_TABNAME = 'T_EB_VERSIONCOPYSCHEME' AND KSQL_COL_NAME IN ('FORGVIEW')) 
 ALTER TABLE T_EB_VERSIONCOPYSCHEME ADD (FORGVIEW BIGINT NULL);