官方文档
https://www.mongodb.com/zh-cn/docs/v6.0/reference/operator/aggregation/unsetField/
示例
db.collection.updateMany(
{},
[
{
$set: {
doc: {
$unsetField: {
input: "$$ROOT",
field: "包含.的字段名称([email protected])"
}
}
}
},
{
$replaceRoot: {
newRoot: "$doc"
}
}
]
)