如何在MongoDB中查找字段为NaN的所有文档? [英] how do I find all documents with a field that is NaN in MongoDB?

问题描述

我想删除所有NaN的地理空间字段，以便可以正确索引MongoDB.

I want to delete all geospacial fields that are NaN so I can properly index my MongoDB.

我如何找到所有具有此功能的文档?

How do I find all documents that have this though?

db.collection.find( { field: {$not: { $type: 1 } } })

由于NaN是Number类型，因此无法正常工作.

won't work since NaN is of type Number.

推荐答案

db.collection.find( { field: NaN })

虽然我找不到任何文档，但实际上可以工作

actually works although I couldn't find any documentation on it

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