Created
March 27, 2020 19:30
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mongodb change field data type
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| db.collection.updateMany( | |
| { | |
| "fieldname": { | |
| $type: "datatype" | |
| } | |
| } | |
| , | |
| [ | |
| { | |
| $set: { | |
| "fieldname": { | |
| $convert: { | |
| input: "$fieldname", to: "datatype" | |
| } | |
| } | |
| } | |
| } | |
| ] | |
| ) | |
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