Database
298 results found
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$addToSetIfNotExists or javascript code as array operator
This would allow for unique if not last entry into arrays.
Preventing:
['one', 'one', 'two', 'three']
But allowing:
['one', 'two', 'three', 'one']
Or perhaps (to run js code on the array at the db):
`.update({}, {$js: {'array_field': 'var last = ""; for (var key in array) {if (array[key] === last) {array.splice(key);}}'});
1 vote -
Allow Dynamic Object In $project and $addFields
Assume I have a field mapping defined in some configuration collection of my application. And this field mapping varies for different clients on my application.
I would like to pass the dynamic object in my $project or $addFields stage
Like:
$project: {
{$arrayToObject: "$field_mapping"},
}{$arrayToObject: "$field_mapping"} would return something like
"email" : "$data.Email",
"phone" : "$data.Phone,
"firstname" : "$data.FirstName",
"lastname" : "$data.LastName",
"preferredchannel" : "$data.Channel",
"preferredlanguage" : "$data.LanguageCode",
"emailchannel" : "$data.Email",
"smschannel" : "$data.SMS",
"province" : "$data.CustomerState"1 vote -
1 vote
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Implement restrict Network access list to improve Security risk
Currently the Network access list admits to add IP addresses to allow connections from. However, we are using Private Endpoints to connect to our clusters; from Google Cloud we cannot add rules to PSC in the firewall, so this means that being in our VPN all devices internally has access to our mongo databases.
How can we prevent access from any place in our company to our databases. This is a huge security risk.
1 vote -
Allow for redacted and non-redacted log files at the same time
This would be applicable for on-prem and Atlas.
1 vote -
Create operators that support Centrality Algorithms use cases
Degree Centrality
Closeness Centrality
Harmonic Centrality
Betweenness Centrality
Eigenvector Centrality
PageRank
ArticleRank1 vote -
Add a $sample accumulator operator
So that it's easier to sample a number of items from each group, instead of writing lengthy DSL like this:
Ideally it can be expressed like this:
{
$group: {
_id: '$year',
samples: { $sample: 100 },
}
}
Hence making sampling 100 items from each group a snap to achieve!
1 vote -
kNN Searches with MongoDB
Dear MongoDB team,
The possibility for kNN searches within a collection would be a real game changer. Not only in machine learning, but also in other areas you need this query method to find similar structures.
Practically, it could go in the same direction as text searches. So that you have to create an index that you can also query similarly and then sort according to the score.I speak from my own suffering, as I had to switch from MongoDB to Open-/Elasticsearch for my current project, as they are also non-relational databases but support kNN searches. However, I like…
1 vote -
Boost the performance of bioinformatic annotation queries
The documents to be selected look something like this:
{
"_id": {
"$oid": "6272c580d4400d8cb10d5406"
},
"#CHROM": 1,
"POS": 286747,
"ID": "rs369556846",
"REF": "A",
"ALT": "G",
"QUAL": ".",
"FILTER": ".",
"INFO": [{
"RS": 369556846,
"RSPOS": 286747,
"dbSNPBuildID": 138,
"SSR": 0,
"SAO": 0,
"VP": "0x050100000005150026000100",
"WGT": 1,
"VC": "SNV",
"CAF": [{
"$numberDecimal": "0.9381"
}, {
"$numberDecimal": "0.0619"
}],
"COMMON": 1,
"TOPMED": [{
"$numberDecimal": "0.88411856523955147"
}, {
"$numberDecimal": "0.11588143476044852"
}]
},
["SLO", "ASP", "VLD", "G5", "KGPhase3"]
]
}For a basic annotation (https://en.wikipedia.org/wiki/SNP_annotation) scenario, we need such query:
{'ID': {'$in': ['rs369556846', 'rs2185539', 'rs2519062', 'rs149363311', 'rs55745762', <...>]}}
, where <...> means hundreds/thousands…1 vote -
views on different database (synonyms)
It would be great if we could have in Mongo the same as in Oracle with DBLink synonyms:
Access table or views from a different database.1 vote -
add view，index，user，role to mongodb Change Stream
I tested the changeStream of mongodb. The changes of adding view, index, user and role to mongodb are not reflected in changeStream, but the corresponding log can be found in oplog. I have an issue on https://jira.mongodb.org/browse/SERVER-66460 and got it confirmed, but Chris Kelly thinks this should be a feature. Hopes to add this feature in future versions
1 vote -
1 vote
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1 vote
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Change how document size is calculated
Disclaimer: I'm aware that this is a pretty big feature request.
Currently a document has a max size of 16 mb. I'm not suggesting changing that. However, I'm suggesting changing how that size is calculated.
I'm designing a database in which documents have a tree structure. The document will have an array called "nodes", which can hold any number of child nodes. Those nodes can also have arrays of nodes, and so on. It's a simple tree structure.
For major users of my application, that outer document could get pretty big. It's not a problem right now (no users, no…
1 vote -
Multi-version-intermediate upgrade package
When upgrading the MongoDB server community edition from a very old version to the newest version one cannot skip installing intermediate versions, e. g. version 3.6 -> 4.4 does not work because the database files cannot be auto-migrated and the FeatureCompatibilityVersion is too low on 3.6 (or not existent).
Instead we have to install 3.6 -> 4.0 -> 4.2 -> 4.4 and execute db.adminCommand( { setFeatureCompatibilityVersion: "..." } ) appropriately in between installing each new version.
I propose creating an additional installer package for Linux which takes care of all that to migrate the internal database structure from the installed…
1 vote -
Have an API to have the History of Primary Nodes
Have an API to have the History of Primary Nodes,from the time the Replica set is initiated.I know we can have alerts for Primary switch over,but if we want to analyse the data of elections/primary node for say about last 1 year , an API would help.
1 vote -
1 vote
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Please create a build in role that grants developers all permissions needed to add/edit schema validations short of adminAll.
Please create a built-in role that grants developers all permissions needed to add/edit schema validations short of dbAdminAnyDatabase.
1 vote -
Add option to $dayOfWeek to choose between Monday and Sunday
Hi!
I was wondering if you could add an optional parameter to $dayOfWeek that allows you to choose on which day you want the functionality to start counting.
Thanks!
1 vote -
Add regex support in pipeline operator `replaceAll`
It would be very nice to have something like this possible:
{ $replaceAll: { input: "$text", find: "/[;,.]/g", replacement: "." } }Many thanks !
1 vote
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