Data Modeling & Indexing

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Clustered Collection TTL on _id should support ObjectId.

Clustered Collections have the ability to expire on the _id field, this would be really helpful if it could use the timestamp portion of the ObjectId.

Guest about 3 years ago in Data Modeling & Indexing 0 Submitted

2 VOTE

Support Two Array Fields in Compound Indexes

Hi, I've come across a lot of use cases where the business logic has demanded unique constraints on 1-2 fields that have been modeled as arrays on documents. The cases that only contain a single array field is already taken care of using unique i...

Guest about 3 years ago in Data Modeling & Indexing 0 Submitted

2 VOTE

Add numerically-ordered index feature which forces a field to maintain ordering

I would like MongoDB to add better support for ordered lists across documents in a collection. This feature would allow the user to designate a field such as "position", and the DB would ensure the values of that field across documents remain in a...

Guest over 3 years ago in Data Modeling & Indexing 0 Submitted

1 VOTE

TTL index activity statistics

Dear all, Presently, there is no visibility or tracking of TTL index activity: no data available to the user to see how much data and how often has been deleted. I suggest having a separate “dictionary” collection with statistics for all TTL inde...

Guest almost 2 years ago in Data Modeling & Indexing 0 Submitted

2 VOTE

Make it clear an index not on present on all shards

We recently had an issue where an index did not get created on all shards. When we ran getIndexes() on mongos it reported the index was present. So we dropped another redundant index thinking all would be well - it was not. We had serious performa...

Guest over 3 years ago in Data Modeling & Indexing 0 Submitted

3 VOTE

Automatic Indexes

MongoDB can already suggest useful indexes. Why not take the next step and allow MongoDB to autonomously create and manage indexes. Ideally it will automatically maintain the indexes over time as the structure and usage of the database changes.

Guest over 5 years ago in Data Modeling & Indexing 1 Submitted

1 VOTE

array length as computed to be indexed

in some cases, I need to filter only docs with specific (or range of) sizes of nested arrays. it will be good if I can configure 'automatic index' to keep the length of the array, based on the field name I will provide to the index, and then I can...

Guest about 2 years ago in Data Modeling & Indexing 0 Submitted

1 VOTE

Support indexes on single array elements (e.g. "MyArray.0")

Currently, if I create an index on an array field and specify an element number ("MyArray.0"), the system still indexes the whole array as normal. Normally, this might increase the index size but at least it's still useful when querying MyArray.0...

Guest over 2 years ago in Data Modeling & Indexing 0 Submitted

1 VOTE

UTF 16 and UTF 32 support

Currently MongoDB only support UTF 8 strings but it will be great if there is a configuration to change UTF 16 or UTF 32.

Guest about 3 years ago in Data Modeling & Indexing 0 Submitted

1 VOTE

BSON::Proxy Proxy content from/to another collection

I would like a mongodb data type, called BSON::Proxy # not indexable or searchable Which would hold the value of another collection & id. IE: BSON::Proxy({database: "this_one", collection: "blobs", _id: "123"}) This would allow my code to...

Guest over 3 years ago in Data Modeling & Indexing 0 Submitted

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