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Say I have a document that represents books like this: { "_id":"1234567890", "title":"Lord Of The Rings", "books": { "1234567890":{ "_id":"123456789890", "title":"The Two Towers", "page_count":{ "en":6000, "de":7000 } }, "2234567890":{ "_id":"223456789890", "title":"The Return Of The King", "page_count":{ "en":6000, "de":7000 } }, } } How would I go about removing the page count for the 2nd book? I tried {$unset : {"books.2234567890.page_count":""}} Didn't work. Any ideas? Thanks a lot
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