What functions and tasks did you implement in the database management system?

In Go, the object-oriented model uses its own concurrency model based on goroutines — lightweight threads managed by the Go runtime, not the operating system. Unlike traditional threads, which are created and managed by the OS and have significant memory and context switch overhead, goroutines occupy only a few kilobytes of memory and can be launched in large numbers (tens or hundreds of thousands) without significant performance degradation.

The Go runtime independently distributes goroutines across system threads, efficiently utilizing multiprocessing. This allows writing high-performance concurrent code with minimal resource costs and without complex thread management.

Example of creating many goroutines:

for i := 0; i < 100000; i++ {
    go func(n int) {
        // Some work
        fmt.Println(n)
    }(i)
}
// Wait for completion (e.g., via sync.WaitGroup)

Thus, the key difference is the lightweight nature and efficient scheduling of goroutines, enabling many more to run compared to traditional threads in other languages.