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MySQL HeatWave vs SingleStore

MySQL HeatWave: Oracle's managed MySQL with an in-memory columnar engine for analytics, lakehouse, ML and vector search. SingleStore: Distributed SQL mixing in-memory rowstore and columnstore for real-time analytics, search and vectors.

key differences

  • Only MySQL HeatWave has triggers, materialized views.
  • Only SingleStore has online schema changes, streaming ingest.

choose mysql-heatwave for

  • +Real-time dashboards on MySQL application data
  • +Consolidating a MySQL OLTP database and a separate warehouse
  • +RAG and semantic search over MySQL-resident content
  • +Querying data-lake files with MySQL SQL

best at · HTAP, OLTP, OLAP

choose singlestore for

  • +Real-time customer-facing analytics
  • +Fraud detection and risk scoring on streaming data
  • +Ad-tech and IoT ingestion with immediate querying
  • +Hybrid vector plus keyword search for RAG

best at · HTAP, Real-time analytics, Vector search

MySQL HeatWaveOracle's managed MySQL with an in-memory columnar engine for analytics, lakehouse, ML and vector search.
SingleStoreDistributed SQL mixing in-memory rowstore and columnstore for real-time analytics, search and vectors.
overview
Primary model
Relational
Relational
Also supports
Columnar / OLAP, Document, Vector, Spatial
Columnar / OLAP, Document, Vector, Search Engine, Spatial
Type
Managed service
Database engine
Status
Active
Active
Developer
Oracle Corporation
SingleStore, Inc.
First release
2020
2013
Latest version
26.10.0 (innovation) (Oct 20, 2026)
9.0.44 (Sep 24, 2026)
License
ProprietaryProprietary managed service (MySQL core is GPLv2)
ProprietaryProprietary (free developer/standard licenses with limits)
Free tier
✓
✓
popularity
WhichDB Score
0.5
29.0
Rank
#633
#92
GitHub stars
–
–
Stack Overflow questions
–
403
scale & guarantees
Comfortable data size
Large (≤ 1 PB)
Large (≤ 1 PB)
Horizontal scaling
Native
Native
Multi-region
Read replicas
Read replicas
ACID
Full
Full
Consistency
Strong
Strong
Schema
Strict
Strict
Architecture
Distributed, Primary replica, In memory
Distributed, In memory, Client server
deployment
Self-hosted
—
✓
Vendor-managed cloud
✓
✓
Serverless
—
—
Embedded
—
—
Edge
—
—
Clouds
Oracle Cloud, AWS, Azure
AWS, Google Cloud, Azure
capabilities
Transactions
✓
✓
Joins
✓
✓
Secondary indexes
✓
✓
Full-text search
✓
✓
Vector search
✓
✓
Geospatial
✓
✓
JSON
✓
✓
Change data capture
✓
✓
Triggers
✓
—
Stored procedures
✓
✓
Materialized views
✓
—
TTL / expiry
—
—
Pub/Sub
—
—
Columnar storage
✓
✓
In-memory
✓
✓
Durable persistence
✓
✓
Compression
✓
✓
Encryption at rest
✓
✓
Role-based access
✓
✓
Time travel
—
—
Branching
—
—
Online schema changes
—
✓
Streaming ingest
—
✓
Offline sync
—
—
Runs in WebAssembly
—
—
interfaces
Query languages
SQL, JavaScript (stored programs)
SQL, MPSQL (stored procedures)
Client languages
Java, Python, JavaScript, Go, PHP, C#, C++
Java, Python, JavaScript, Go, C#, PHP, Rust
Best for
HTAP, OLTP, OLAP, Real-time analytics
HTAP, Real-time analytics, Vector search, Search
Add more to this comparisonNot sure either fits? Try smart match

MySQL HeatWave vs SingleStore: FAQ

What is the difference between MySQL HeatWave and SingleStore?

MySQL HeatWave: Oracle's managed MySQL with an in-memory columnar engine for analytics, lakehouse, ML and vector search. SingleStore: Distributed SQL mixing in-memory rowstore and columnstore for real-time analytics, search and vectors. Only MySQL HeatWave has triggers, materialized views. Only SingleStore has online schema changes, streaming ingest.

When should I choose MySQL HeatWave over SingleStore?

Choose MySQL HeatWave for real-time dashboards on MySQL application data; consolidating a MySQL OLTP database and a separate warehouse; and RAG and semantic search over MySQL-resident content. Choose SingleStore for real-time customer-facing analytics; fraud detection and risk scoring on streaming data; and ad-tech and IoT ingestion with immediate querying.

Is MySQL HeatWave or SingleStore more popular?

SingleStore ranks #92 on the WhichDB Score (29.0/100) and MySQL HeatWave ranks #633 (0.5/100). Popularity is not fit: check the requirements that matter for your project.

Are MySQL HeatWave and SingleStore open source?

No. MySQL HeatWave is proprietary, closed-source software. No. SingleStore is proprietary, closed-source software.