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this.ref.collection("users", ref => ref.where("uid1","in", [reciverId, senderId]) .where("uid2","in", [reciverId, senderId])) give me error like "Invalid query. You cannot use more than one 'in' filter"
I have a process that exports the data from an AWS RDS MariaDB using mysqldump which has been running succesfully in a docker-image on Concourse for years. Since two nights ago the process has started failing with the error: mysqldump: Couldn't execute 'FLUSH TABLES WITH READ LOCK': Access denied for user 'admin'@'%' (using password: YES) (1045) The official
As we all know, the pythonic way to swap the values of two items a and b is a, b = b, a and it should be equivalent to b, a = a, b However, today when I was working on some code, I accidentally found that the following two swaps give different results: nums = [1, 2, 4, 3] i = 2 nums[i], nums[nums[i]-1] = nums[nums[i]-1], nums[i] print(nums) # [1, 2, 4, 3] nu
An upgrade needs a compatibility check, a tested release and a recovery path. Which changes deserve particular attention before the new version reaches production?
I have Windows 11 and I had WSL working fine, until I had to do a PC Reset and now trying to install it again from scratch. This is what I get now (after multiple WSL installation attempts): PS > wsl --install Windows Subsystem for Linux is already installed. The following is a list of valid distributions that can be installed. Install using 'wsl.exe --in
I have installed Ubuntu 20.4 LTS on WSL. My windows 10 already have the JDK installed. Do I need to install JDK on ubuntu on WSL or can I use the Windows 10 JDK in the Ubuntu? How you do Java programming on WSL? Which is the proper way? I was just wondering if I need to install all the development tools and binaries again on Linux won't it take a lot of spac
The same project needs to behave consistently on developer machines, in CI and after deployment. Which versions, dependencies and configuration should be recorded?
Recovery needs to recreate the working service and its required data after a machine or process is lost. Which artifacts and state need protection, and how should the restore be checked?
A performance change should improve the measured workload without sacrificing correctness or wasting capacity. Which measurements and bottlenecks should be considered first?
firebase
mariadb
python
nextjs
java
sqlite
react