src/main/java/com/aliyun/openservices/paifeaturestore/dao/FeatureViewHologresDao.java [404:423]:
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        if (offlineSequence.isEmpty()) {
            return onlineSequence;
        } else if(onlineSequence.isEmpty()) {
            return offlineSequence;
        } else {
            int index=0;
            for (;index<onlineSequence.size();) {
                if (Long.valueOf(onlineSequence.get(index).getTimestampField()) < Long.valueOf(offlineSequence.get(0).getTimestampField())) {
                    break;
                }
                index++;
            }
            onlineSequence=onlineSequence.subList(0,index);
            onlineSequence.addAll(offlineSequence);
            if (onlineSequence.size() > config.getSeqLenOnline()) {
                onlineSequence.subList(0,config.getSeqLenOnline());
            }

        }
        return onlineSequence;
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src/main/java/com/aliyun/openservices/paifeaturestore/dao/FeatureViewTableStoreDao.java [434:453]:
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        if (offlineSequence.isEmpty()) {
            return onlineSequence;
        } else if(onlineSequence.isEmpty()) {
            return offlineSequence;
        } else {
            int index=0;
            for (;index<onlineSequence.size();) {
                if (Long.valueOf(onlineSequence.get(index).getTimestampField()) < Long.valueOf(offlineSequence.get(0).getTimestampField())) {
                    break;
                }
                index++;
            }
            onlineSequence=onlineSequence.subList(0,index);
            onlineSequence.addAll(offlineSequence);
            if (onlineSequence.size() > config.getSeqLenOnline()) {
                onlineSequence.subList(0,config.getSeqLenOnline());
            }

        }
        return onlineSequence;
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