Refer to this document explain.executionStats.totalKeysExamined Number of index entries scanned. totalKeysExamined corresponds to the nscanned field returned by cursor.explain() in earlier versions of MongoDB. explain.executionStats.totalDocsExamined Number of documents examined during query execution. Common query execution stages that examine documents are…
When I load data from MongoDB into a data frame using spark, there is one field with ObjecType and ArrayType whose value is null due to missing data, when I df.show() I get an error: Cannot cast ARRAY into a…
I'm having difficulty replacing a field with mongoose/mongodb I have some documents that look like this: {account:1234, myArray:[a,b,c]} const newArray = [d,e,f]; const result = await Model.updateMany({ account:1234, }, { $set:{ // 'testUpdating':4, 'myArray':newArray, } }); I get this back…
Given a document with a subdocument from a $lookup aggregation, I want to project a specific field form the subdocument based on the field of the $$ROOT document. Example: { "date": "2023-08-20", "code": "USD", "exchange_rates": { "USD": 1.01, "EUR": 2.01,…
I am attempting to delete a MongoDB image on my Docker desktop. But after I click the modal to confirm deletion, it hangs with a message saying "Delete Image? The 'mongo@latest' image is selected for deletion". See screenshot below: It…
I am getting below error randomly. Here is my stack App deployed on vercel is talking to Atlas mongodb (free tier) Nodejs - 18.16.1 nextjs 13 mongodb package version - 5.8.1 ERROR Unhandled Promise Rejection {"errorType":"Runtime.UnhandledPromiseRejection","errorMessage":"MongoServerSelectionError: connection timed out","reason":{"errorType":"MongoServerSelectionError","errorMessage":"connection timed…
i am trying to build a project but whenever i try to run my js code it shows me this error `MongooseError: The `uri` parameter to `openUri()` must be a string, got "undefined". Make sure the first parameter to `mongoose.connect()`…
I am having issues with projecting some fields with mongodb $project my colection has the following datas [{num:"SI-0101",mob:6289141515},...] and my $project query [{ $project: { "Id No.": "$num", "Mobile No.": "$mob" // note on that ., i need it in…
I have a Mongo collection as such: db.items.find({}): [{ "_id": { "$oid": "64e929386a2bff904d86118a" }, "name": "Copies", "legacy_id": 181 }, { "_id": { "$oid": "64e929386a2bff904d86118b" }, "name": "Temp", "legacy_id": 182 }, { "_id": { "$oid": "64e929386a2bff904d86118c" }, "name": "Test", "legacy_id": 183…
In mongodb, is it possible to use $addToSet to test a certain object field for duplications, rather than the object as a whole? For instance, when storing cookies found on a webpage, ie: db.audits.insertOne( { _id: 1, cookies: [{name: "xx",…