Crie um proxy SOCKS em um servidor Linux com SSH para ignorar filtros de conteúdo
Getting first and last values per group
Every so often someone needs solution to getting first (or couple of first) values for given column. Or last. For some cases (when there is not many groups) you can use recursive queries. But it's not always the best choice. Let's try to implement first() and last() aggregates, so these could be easily used by anybody.