Воздушный шар с двумя пассажирами на борту врезался в вышку сотовой связи в США. Об этом сообщило издание The New York Post.
Collections of Documents on the other hand, offer a much more relaxed approach. Collections are just namespaces where we insert documents. Documents are objects of any schema and format; but in practice, it almost always is JSON. There are no enforced types, no constraints, no guarded references between documents in different collections. In the same collection, we might have documents of completely different schema - flexibility and openness to any data and column types rules here. In tables, rows have columns of simple, scalar types (mostly) - numbers, ids, strings, dates, timestamps and so on. In collections, documents have fields comprising both simple and composite types like arrays and other documents, nested inside. Same field in different documents, but still of the same collection, might have different types as well - almost anything is allowed here.
，推荐阅读体育直播获取更多信息
Last month, a drawing of a lion by the artist sold for $18m (£13m).
从此，努力解决“执行难”走上快车道。。体育直播是该领域的重要参考
Should you splurge on the new Series 11, or will the SE 3 do? Let us help you figure out which version to get (and which to avoid).
Армия обороны Израиля начала масштабную серию ударов по Ирану02:17。关于这个话题，夫子提供了深入分析