sql优化：数据量过大查询优化

    private ExecutorService executorService = new ThreadPoolExecutor(30,30,1, TimeUnit.MILLISECONDS,new LinkedBlockingDeque<>());

    public List<Map> getCiServiceBadEvaNumStatistic(SAASIndexQuery saasIndexQuery) throws InvocationTargetException, IllegalAccessException {
        String startDate = saasIndexQuery.getStartDate();
        String endDate = saasIndexQuery.getEndDate();
        int days = DateUtil.getDatebetweenOfDayNum(DateUtil.parseDate(startDate,DateUtil.dateFormatPattern),DateUtil.parseDate(endDate,DateUtil.dateFormatPattern));

        CompletionService<List<CiOrderStatisticSection>> completionService = new ExecutorCompletionService<List<CiOrderStatisticSection>>(executorService);

        List<CiOrderStatisticSection> allList = new ArrayList<>();

        long start = System.currentTimeMillis();
        logger.info("测试异步时间start:" + System.currentTimeMillis());
        //CountDownLatch countDownLatch = new CountDownLatch(days);
        SAASIndexQuery everyDaySaas = new SAASIndexQuery();
        BeanUtils.copyProperties(everyDaySaas,saasIndexQuery);
        for(int i = 0;i<days;i++){
            everyDaySaas.setStartDate(DateUtil.afterNDay(saasIndexQuery.getStartDate(),i,DateUtil.dateFormatPattern));
            everyDaySaas.setEndDate(DateUtil.afterNDay(everyDaySaas.getStartDate(),1,DateUtil.dateFormatPattern));
            //countDownLatch.countDown();
            int finalI = i;
            completionService.submit(new Callable<List<CiOrderStatisticSection>>() {
                @Override
                public List<CiOrderStatisticSection> call() throws Exception {
                    //allList.addAll(biSaasCiDeviceDayExMapper.getCiServiceNegativeRate(saasIndexQuery));
                    //countDownLatch.countDown();
                    System.out.println("====="+ finalI +"=====");
                    return biSaasCiDeviceDayExMapper.getCiServiceNegativeRate(saasIndexQuery);
                }
            });
        }
        System.out.println("==============" + (System.currentTimeMillis()-start) + "毫秒");
        long t = System.currentTimeMillis();
        for (int i = 0;i<days;i++){
            System.out.println("for循环耗时==============+"+i + (System.currentTimeMillis()-t) + "毫秒");

            try {
                Future<List<CiOrderStatisticSection>> future = completionService.take();
                List<CiOrderStatisticSection>  ciList = future.get();
                allList.addAll(ciList);
            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (ExecutionException e) {
                e.printStackTrace();
            }
        }
        long end = System.currentTimeMillis();
        logger.info("测试异步时间end:" + (end-start) + "毫秒");
        System.out.println("测试异步时间end:" + (end-start) + "毫秒");

}