Match and project pipeline

Welcome to a youtube channel dedicated to programming and coding related tutorials. We talk about tech, write code, discuss about cloud and devops. That’s what we do all day, all year. We roll out a lot of series and videos on our channel.
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[@user-ip1ow4of7u]

THESE playlist really needs attention, those who want to learn mongoDB query in depth

[@reginatoronto]

This tutorial is better than many paid tutorial. Kudos and Respect to Hitesh bhai

[@Maniish.pandey]

This is the first video on mongoDb i am watching ever and i am already feeling comfortable and interested, maybe because of Hitesh. I'll start this after React series, Cheers bhaisaab !!🍵

[@HiteshChoudharydotcom]

🤩😍

[@golubhattuk01]

wonderfull playlist glad to watch it earlier than many other people

[@aashutoshchouhan9783]

Tremendous work u have done, glad to gain knowledge from you sir

[@ridamsinghal1073]

Sir, your this series is helping me a lot in understanding the backend video on your chai aur code channel

[@HiteshChoudharydotcom]

Glad to hear that 😁

[@jayjaayjaaay94]

thank you, keep making video for intermediate topics as this

[@MuhammadYasir-cl4jp]

Great Video sir

[@saptathirtachoudhury4158]

This series is awesome Sir ji😍

[@avijitdas9089]

Waiting😍😍

[@user-ke1vg7os1o]

Thank You sir.....

[@asmittyagi6250]

Gracias, señor

[@anandshinde0358]

Thank you sir ❤❤❤

[@leeladharsuthar2152]

Thank you sir

[@aruproy2983]

Happy Christmas sir 🎄

[@HiteshChoudharydotcom]

Same to you

[@mrgtxgamerz1]

Hindi to English , jha v jaaoge hme hi paaoge😀

[@third-eye1196]

thanks bro

[@jk-sm6qr]

Thanks

[@vikasmenghani2477]

sir, i am still confused between $count and $sum, will you please make a separate video for the difference

[@erpchannel007]

🖤🖤🖤

[@rajumandapalli9508]

In grouping used sum for the count but here match used count operator what is the difference btw them

[@asmittyagi6250]

🙏🏻🙏🏻🙏🏻🙏🏻

[@tasnimalam6881]

👍👍🤟

[@sobhansahoosubh3873]

yaa why his video is not popular

[@dhruvdhuria1625]

♥♥♥♥

[@usamakhurshid6625]

sir can i get a help from you 😓. stuck in creating a pipeline

[@munna5553]

Ye beyond the webdev h ye course interview me agg lgane ke liye kafi hai

[@rishiraj2548]

Good evening

[@LearnCoders]

Good evening sir

[@HiteshChoudharydotcom]

Good evening

[@user-zj7vd9lc5l]

Hello Sir,
For finding out no. of users having tags='enim'. Can we do below pipeline?
[
{
$unwind: "$tags"
},
{
$match: {
tags: "enim"
}
},
{
$count: 'EnimTagsCount'
}
]
It is giving me result 63 whereas using your approach we are getting 62. Please Reply back.

[@AnandKumar-og8bu]

It is because this will unwind the document for every tag present in the document. and if there is two enim, it will do it 2 times, and then if you count after that with match enim, it will count one extra.
I have found one document which have enim repeated 2 times in tags
{
"_id": {
"$oid": "6696a3720b670603575add57"
},
"index": 916,
"name": "Katheryn Finch",
"isActive": true,
"registered": {
"$date": "2017-02-11T09:25:44.000Z"
},
"age": 30,
"gender": "female",
"eyeColor": "green",
"favoriteFruit": "banana",
"company": {
"title": "NETERIA",
"email": "[e-mail]",
"phone": "[phone]",
"location": {
"country": "Italy",
"address": "164 Harbor Lane"
}
},
"tags": [
"elit",
"ullamco",
"enim",
"enim",
"consequat"
]
}

[@sam_sharma24]

goldmine

[@patelronak153]

♥