I wanted to create a query that took the "price" attribute of a series of objects of the type shown below. The problem is that the branch "prices.2018.02.13.20180205210908_223.price" is not fixed, but the part " 2018.02.13.20180205210908_223 "It changes every day, so I needed something of the style "prices.asterico.asterico.asterico.asterico.price"
