EloqDoc Compatibility

Supported Features
Compatibility with MongoDB 4.0 and MongoDB 8.0

Supported Features

Indexes

[✅] Compound Index
[✅] Covering Index
[✅] Full-Text Index
[✅] Geospatial Index
[✅] Multikey Index
[✅] Partial Index
[✅] Single-Field Index
[✅] Sparse Index
[✅] TTL Index
[⚠️] Unique Index
[❌] Clustered Index
[❌] Hash Index
[❌] Hidden Index
[❌] Time-Series Index
[❌] Wildcard Indexes

A unique index is supported only when the collection is empty. Create the index before inserting documents.

CRUD

[✅] Aggregate
[✅] BulkWrite
[✅] Count
[✅] Delete
[✅] Distinct
[✅] Find
[✅] FindAndModify
[✅] GetMore
[✅] Insert
[✅] MapReduce
[✅] Update

Aggregation Stages

[✅] AddFields
[✅] Bucket
[✅] BucketAuto
[✅] CollStats
[✅] Count
[✅] CurrentOp
[✅] Facet
[✅] GeoNear
[✅] GraphLookup
[✅] Group
[✅] IndexStats
[✅] Limit
[✅] LimitLocalSessions
[✅] LimitSessions
[✅] Lookup
[✅] Match
[✅] Out
[✅] Project
[✅] Redact
[✅] ReplaceRoot
[✅] Sample
[✅] Skip
[✅] Sort
[✅] SortByCount
[✅] Unwind
[❌] Densify
[❌] Documents
[❌] Fill
[❌] ListClusterCatalog
[❌] ListSampleQueries
[❌] ListSearchIndexes
[❌] Merge
[❌] PlanCacheStats
[❌] QuerySettings
[❌] QueryStats
[❌] RankFusion
[❌] ReplaceWith
[❌] Score
[❌] ScoreFusion
[❌] Search
[❌] SearchMeta
[❌] Set
[❌] SetWindowFields
[❌] UnionWith
[❌] Unset
[❌] Vector Search

Transactions

[✅] Distributed Transaction
[✅] Multi-document transactions
[✅] Multi-document transactions in a cluster
[✅] Single-document atomic writes
[✅] Snapshot isolation
[❌] Read Concern
[❌] Retryable transactions
[❌] Write Concern

Security

[✅] SCRAM Authentication
[✅] x.509 Certificate Authentication
[✅] Role-Based Access Control
[✅] TLS/SSL
[❌] Encryption at Rest
[❌] LDAP Authentication
[❌] Kerberos Authentication

Backup & Restore

[✅] Mongodump
[✅] Mongosync
[✅] Snapshot

Other Features

[✅] High Availability
[✅] Scale-Out
[❌] Atlas Search
[❌] Change Streams
[❌] Time-Series Collections
[⚠️] Vector Search

Vector Search is supported in EloqConvergedDB.

Compatibility with MongoDB 4.0 and MongoDB 8.0

This document provides a feature compatibility matrix comparing EloqDoc with MongoDB 4.0 and MongoDB 8.0.

✅ = Supported
❌ = Not Supported
⚠️ = Partially Supported

Note: The table below lists only the differences between EloqDoc and MongoDB 4.0/8.0. For features commonly supported across products, refer to the Supported Features section above.

Feature Support Matrix

Feature	EloqDoc	MongoDB 4.0	MongoDB 8.0
Cluster-Wide Secondary Indexes	✅	❌	✅
Distributed Transaction	✅	❌	✅
Large Transaction Size	✅	❌	✅
Capped Collections	❌	✅	✅
Command `dbhash`	❌	✅	✅
Command `dbStats`	❌	✅	✅
Command `repair`	❌	✅	✅
Hash Index	❌	✅	✅
Rename Collection	❌	✅	✅
Storage Engine Profiling	❌	✅	✅
Aggregation Operator: Merge/Union/Search	❌	❌	✅
Atlas Search	❌	❌	✅
Client-Side Field Level Encryption	❌	❌	✅
Columnstore Indexes	❌	❌	✅
Queryable Encryption	❌	❌	✅
Resumable Initial Sync	❌	❌	✅
Schema Validation ($jsonschema)	❌	❌	✅
Time-Series Collections	❌	❌	✅
Vector Search	❌	❌	✅
Wildcard Indexes	❌	❌	✅
Window Function	❌	❌	✅
Change Streams	⚠️	✅	✅
Replica Set Support	⚠️	✅	✅
Unique Index	⚠️	✅	✅

Change Streams in EloqDoc use a separate CDC solution called EloqCDC.
EloqDoc uses a single compute node and cloud storage to achieve high availability. Kubernetes is used to automatically fail over the compute node.
A unique index is supported only when the collection is empty. Create the index before inserting documents.

Table of Contents​

Supported Features​

Indexes​

CRUD​

Aggregation Stages​

Transactions​

Security​

Backup & Restore​

Other Features​

Compatibility with MongoDB 4.0 and MongoDB 8.0​

Feature Support Matrix​

Table of Contents