Use of $COND and $EQ with a array of objects - Stack Overflow
Mar 1, 2014 · I'm hoping that someone might be able to answer whether what I'm trying to accomplish below can be done with the MongoDB Aggregation Framework. I have a user data …
"cond","and" and "or" in Scheme - Stack Overflow
Oct 14, 2013 · In addition to the answers that you get here, you might look at the answers to Why (apply and ' (1 2 3)) doesn't work while (and 1 2 3) works in R5RS? and Using AND with the …
How to group query with multiple $cond? - Stack Overflow
Jun 2, 2017 · How to group query with multiple $cond? Asked 11 years, 8 months ago Modified 2 years, 10 months ago Viewed 50k times
mongoose aggregate using $exists in $cond - Stack Overflow
Jan 9, 2017 · I want to $project if a field exists, but not it's value, using mongoose model aggregate query. If it was possible using $exists in $cond, it would have looked ...
Conditional grouping with $exists inside $cond - Stack Overflow
1 I found your questions while looking for a similar problem, but insted of a key, I was looking for my parameters. I finally solved the issue. This is what I used for my parameter, to check that if …
understanding of pthread_cond_wait() and pthread_cond_signal()
Jan 3, 2024 · But there is a saying "The pthread_cond_signal () function shall unblock at least one of the threads that are blocked on the specified condition variable cond (if any threads are …
Is there an elseif thing in MongoDB to $cond while aggregating
Dec 15, 2014 · Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges,
How to make a thread wait for multiple conditional signals from ...
Feb 11, 2022 · What you're describing is not about different threads -- pthread_cond_wait() / pthread_cond_signal() already handle that just fine, as indeed they need to do to serve their …
How to use $in or $nin in mongo aggregation $group $cond
Nov 16, 2015 · Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges,
MongoDB $in inside $cond - Stack Overflow
Mar 16, 2019 · I burned out my brain trying to group and count itens in MongoDB. There are lots of posts but no one is that i need. This is an exemple based on: styvane answer …