Use of $COND and $EQ with a array of objects - Stack Overflow 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 structure that resembles the foll
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 it exists inside the cond
What is the difference between if and cond? - Stack Overflow As of #2240 (merged 2 Mar 2022), if and cond are somewhat different from what they used to be, and are better distinguished from each other if requires exactly three arguments: (if condition-form then-form else-form) cond takes any even number of arguments and doesn't require brackets or provide implicit do s: (cond condition1 then1 condition2
MongoDB $in inside $cond - Stack Overflow 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 db VIEW_HISTORICO aggregate([ {
How to make a thread wait for multiple conditional signals from . . . 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 intended purpose If a given thread is waiting on condition variable cond1 then it can be awakened by any thread that signals or broadcasts to cond1