What approaches are used to optimize working with a table containing a large amount of data?

To optimize working with large tables in Go, several approaches can be used:

• Use efficient data structures, such as slices or maps, to quickly search and filter data.
• Pagination: load and process data in parts rather than the entire table.
• Indexing: if data is stored in a database, create indexes to speed up queries.
• Parallel processing with goroutines to distribute the load.
• Caching frequently used data.

Example of pagination using slices:

func paginate(data []int, page, pageSize int) []int {
    start := (page - 1) * pageSize
    if start > len(data) {
        return []int{}
    }
    end := start + pageSize
    if end > len(data) {
        end = len(data)
    }
    return data[start:end]
}

This approach helps process large volumes of data in parts, reducing memory and CPU load.