Find the location of $value in MongoDB where the timestamp is greater than or equal to JS

When attempting to find a nested element's existence and get a timestamp greater than a certain value, I'm encountering an issue:

 db.stats.find(  { $and:  [ { 'data.Statistics': {$exists: true} },{ timestamp: {$gte: 1} } ] }

Although consulting the documentation doesn't show any errors in my query structure. However, I am not receiving any results back.

Surprisingly, simply utilizing the following code snippet works for me:

var query = {};     
query["data.Statistics"] = {$exists: true}

This approach seems to be effective in this case.

javascriptmongodb

Answer №1

In this scenario, utilizing the $and operator may not be necessary because you can implicitly achieve the same result by simply listing expressions with commas. Thus, your query can be reformatted as follows:

db.stats.find({ 
    "data.Statistics": { "$exists": true },
    "timestamp": { "$gte": 1 } 
});

If you wish to use a variable to create the query object using square brackets, you can proceed as shown below:

var query = {};     
query["data.Statistics"] = { "$exists": true };
query["timestamp"] = { "$gte": 1 };

db.stats.find(query);

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