Question

    d = collection.aggregate([
                {
                    "$match": {
                        "NS": "fragrance"
                    }
                },
                {
                    "$lookup": {
                        "from": "chatter_master_data_Dish_care",
                        "localField": "doc_id",
                        "foreignField": "doc_id",
                        "as": "inventory_docs"
                    }
                },
                {
                    "$unwind": "$inventory_docs"
                },
                {
                    "$match" : {
                        "inventory_docs.Category": {"$regex" : re.compile("Dish Care", re.IGNORECASE)}
                    }
                },
                {
                    "$group": {
                        "_id": "$inventory_docs.Category"
                    }
                },
                { "$limit": 5 }
        ])

如何在mongodb聚合中使用非重复

您好，我想根据“ inventory_docs.Category” 获得与众不同结果我在 db.collection.distinct（）中找到了区别但委员会无法使用汇总找到与众不同的内容。

请看看。

{
  "": "11049",
  "twitter_retweeted_status_author_demographics": "",
  "crawled_at": "",
  "twitter_retweeted_status_author_location_county": "",
  "title": "Homewood Suites by Hilton Lake Mary",
  "index": "14027",
  "location_country": "USA",
  "content_noun_adj": " great room sofa little uncomfortable room dishwash sink water while rest great dishwash didbpot coffee smell",
  "location_longitude": "",
  "twitter_retweeted_status_author_demographics_bio_tag_list": "",
  "doc_id": "US_Dish Care USA _Consumer opinions_2016-01-03_14027",
  "title_norm": "homewood suites by hilton lake mary ",
  "twitter_retweeted_status_author_location_latitude": "",
  "twitter_retweeted_status_author_demographics_age": "",
  "content_pre_processed": "   great room ! sofas little uncomfortable and room smelled because dishwash er and sink had not had any water ran through it in a while but the rest was great . we just ran the dishwash er and didbpot of coffee to get smell out and it worked .",
  "human_review_status": "reviewed",
  "location": "",
  "twitter_retweeted_status_author_location_longitude": "",
  "date": "2016-01-03",
  "channel": "earned",
  "language": "eng",
  "twitter_retweeted_status_author_demographics_gender": "",
  "twitter_retweeted_status_author_demographics_family_status": "",
  "title_lemmatized": " homewood suite by hilton lake mary",
  "location_latitude": "",
  "site_id": "2965385.0",
  "title_pre_processed": " homewood suites by hilton lake mary",
  "twitter_retweeted_status_author_location_country": "",
  "Country": "US",
  "twitter_retweeted_status_author_picture_url": "",
  "_id": {
    "$oid": "5cd91749e42b8c2438d837ab"
  },
  "content_noun": " room sofa room sink water while rest didbpot coffee smell",
  "twitter_retweeted_status_sentiment": "",
  "twitter_retweeted_status_date": "",
  "twitter_retweeted_status_author_location": "",
  "twitter_retweeted_status_title": "",
  "Category": "Dish Care USA ",
  "ratings_raw": "",
  "twitter_retweeted_status_author_location_state": "",
  "site_name": "Expedia",
  "content_norm": " great room! sofas little uncomfortable and room smelled because dishwash er and sink had not had any water ran through it in a while but the rest was great. we just ran the dishwash er and didbpot of coffee to get smell out and it worked. ",
  "all-in-one": "['homewood suites by hilton lake mary', ' great room! sofas little uncomfortable and room smelled because dishwash er and sink had not had any water ran through it in a while but the rest was great. we just ran the dishwash er and didbpot of coffee to get smell out and it worked.', '']",
  "twitter_retweeted_status_author_demographics_marital_status": "",
  "title_noun": " homewood suite hilton lake mary",
  "twitter_retweeted_status_author_location_city": "",
  "content_parsed": " great room! sofas little uncomfortable and room smelled because dishwash er and sink had not had any water ran through it in a while but the rest was great. we just ran the dishwash er and didbpot of coffee to get smell out and it worked. ",
  "sentiment": "positive",
  "twitter_retweeted_status_author_demographics_job_list": "",
  "twitter_retweeted_status_author_url": "",
  "title_noun_adj": " homewood suite hilton lake mary",
  "site_type": "Consumer opinions",
  "synthesio_rank": "5.0",
  "ratings_normalized": "",
  "title_parsed": "homewood suites by hilton lake mary ",
  "content_lemmatized": "   great room ! sofa little uncomfortable and room smell because dishwash er and sink have not have any water run through it in a while but the rest be great . we just run the dishwash er and didbpot of coffee to get smell out and it work .",
  "content": "Great room! Sofas little uncomfortable and room smelled because dishwasher and sink had not had any water ran through it in a while but the rest was great. We just ran the dishwasher and didbpot of coffee to get smell out and it worked.",
  "url": "https://www.expedia.com/Hotel.h118283.Hotel-Information",
  "twitter_retweeted_status_url": "",
  "twitter_retweeted_status_author_demographics_affinity_list": ""
}

这是结果的样本文件但是，内容列即将重复。

如何在MongoDB中使用与农业不同的

0 个答案: