bulkUpdate $pull operation on array with objects not working

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
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    • Affects Version/s: 4.4.3
    • Component/s: None
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      import { MongoClient } from 'mongodb'

const client = new MongoClient('mongodb://127.0.0.1:27017')
await client.connect()
const db = client.db('test')
const insertResult = await db.collection('test').insertOne({ arr: [{ _id: 1, isAdmin: true }, { _id: 2, isAdmin: false }] })
const doc = await db.collection('test').findOne({ _id: insertResult.insertedId })
console.log('before bulk update', doc)
const bulkUpdate = db.collection('test').initializeUnorderedBulkOp()
bulkUpdate.find({ _id: doc.insertedId }).updateOne({ $pull: { arr: { _id: 1 } } })
if (bulkUpdate.length > 0) {
 console.log('executing bulk update')
 await bulkUpdate.execute()
}
// await db.collection('test').updateOne({ _id: doc._id }, { $pull: { arr: { _id: 1 } } })
const updatedDoc = await db.collection('test').findOne({ _id: doc._id })
console.log('after bulk update', updatedDoc)
await db.collection('test').deleteOne({ _id: doc._id })

       

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        import { MongoClient } from 'mongodb' const client = new MongoClient( 'mongodb: //127.0.0.1:27017' ) await client.connect() const db = client.db( 'test' ) const insertResult = await db.collection( 'test' ).insertOne({ arr: [{ _id: 1, isAdmin: true }, { _id: 2, isAdmin: false }] }) const doc = await db.collection( 'test' ).findOne({ _id: insertResult.insertedId }) console.log( 'before bulk update' , doc) const bulkUpdate = db.collection( 'test' ).initializeUnorderedBulkOp() bulkUpdate.find({ _id: doc.insertedId }).updateOne({ $pull: { arr: { _id: 1 } } }) if (bulkUpdate.length > 0) { console.log( 'executing bulk update' ) await bulkUpdate.execute() } // await db.collection( 'test' ).updateOne({ _id: doc._id }, { $pull: { arr: { _id: 1 } } }) const updatedDoc = await db.collection( 'test' ).findOne({ _id: doc._id }) console.log( 'after bulk update' , updatedDoc) await db.collection( 'test' ).deleteOne({ _id: doc._id })  
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      os: ArchLinux 5.15.2

      nodeJS: 14.17.4
      mongodb: 4.4.3
      nodejs mongodb drvier: 4.2.0

      Usual updateOne working when call $pull on array fields containing objects, but bulk operation have no effect.

            Assignee:
            Unassigned
            Reporter:
            Ivan Cherviakov
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            Watchers:
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              Created:
              Updated:
              Resolved: