解决mybatis-plus 查询耗时慢的问题

EntityWrapper ew = new EntityWrapper<>();
 ew.in(TableFieldConstant.F_AUTH_RESULT_ID, ids);

 protected String formatSqlIfNeed(boolean need, String sqlStr, Object... params) {
        if (need && !StringUtils.isEmpty(sqlStr)) {
            if (ArrayUtils.isNotEmpty(params)) {
                for(int i = 0; i < params.length; ++i) {
                    String genParamName = "MPGENVAL" + this.paramNameSeq.incrementAndGet();
                    sqlStr = sqlStr.replace(String.format("{%s}", i), String.format("#{%s.paramNameValuePairs.%s}", this.getParamAlias(), genParamName));
                    this.paramNameValuePairs.put(genParamName, params[i]);
                }
            }
 
            return sqlStr;
        } else {
            return null;
        }
    }

sqlStr = sqlStr.replace(String.format("{%s}", i), String.format("#{%s.paramNameValuePairs.%s}", this.getParamAlias(), genParamName));

// 第一步判断更新或添加
 String[] splitUserId = userGroup.getUserId().split(",");
 String[] spiltUserName = userGroup.getUserName().split(",");
 if (StringUtils.isBlank(userGroup.getId())) {
  userGroup.setNum(spiltUserName.length);
  userGroupMapper.insert(userGroup);
 } else {
  userGroup.setNum(spiltUserName.length);
  userGroupMapper.updateById(userGroup);
 }
 /* 第二部删除中间表信息，字段冗余 */

 Map<String, Object> columnMap = new HashMap<String, Object>();
 columnMap.put("USER_GROUP_ID", userGroup.getId());
 groupUsersService.removeByMap(columnMap);

 /* 第三步，批量保存中间表 */

 if (splitUserId.length != 0) {
  List<GroupUsers> groupUsersList = Lists.newArrayList();
  for (int i = 0; i < splitUserId.length; i++) {
   GroupUsers gu = new GroupUsers();
   gu.setUserId(splitUserId[i]);
   gu.setUserName(spiltUserName[i]);
   gu.setUserGroupId(userGroup.getId());
   groupUsersList.add(gu);
  }
  groupUsersService.saveBatch(groupUsersList);
 }