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DBMS > QuestDB

QuestDB System Properties

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Our visitors often compare QuestDB with TimescaleDB, SurrealDB and PostgreSQL.

Editorial information provided by DB-Engines
NameQuestDB
DescriptionA high performance open source SQL database for time series data
Primary database modelTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.52
Rank#109  Overall
#9  Time Series DBMS
Websitequestdb.io
Technical documentationquestdb.io/­docs
DeveloperQuestDB Technology Inc
Initial release2014
License infoCommercial or Open SourceOpen Source infoApache 2.0
Cloud-based only infoOnly available as a cloud serviceno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJava (Zero-GC), C++, Rust
Server operating systemsLinux
macOS
Windows
Data schemeyes infoschema-free via InfluxDB Line Protocol
Typing infopredefined data types such as float or dateyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.no
Secondary indexesno
SQL infoSupport of SQLSQL with time-series extensions
APIs and other access methodsHTTP REST
InfluxDB Line Protocol (TCP/UDP)
JDBC
PostgreSQL wire protocol
Supported programming languagesC infoPostgreSQL driver
C++
Go
Java
JavaScript (Node.js)
Python
Rust infoover HTTP
Server-side scripts infoStored proceduresno
Triggersno
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning (by timestamps)
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replication with eventual consistency
MapReduce infoOffers an API for user-defined Map/Reduce methodsno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID for single-table writes
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infothrough memory mapped files
More information provided by the system vendor
QuestDB
Specific characteristics
  • Relational model with native time series support
  • Column-based storage and time partitioned
  • Write complexity of O(1): constant performance irrespective of the dataset size
  • On-the-fly, out-of-order data management
  • Dada deduplication without impacting ingestion throughput
  • SIMD accelerated vectorized SQL queries
  • Full SQL support
  • Joins support: INNER, OUTER, CROSS, ASOF, SPLICE, FULL
  • Time-series SQL extensions: SAMPLE BY, LATEST ON, WHERE ... IN
  • Repeatable read consistency
  • Durability: Configurable to invoke msync()/fsync() for column files on each commit
  • Interfaces: InfluxDB Line Protocol, PGWire, HTTP, REST API
Competitive advantages
  • High ingestion throughput: peak of 4M rows/sec (TSBS Benchmark)
  • Code optimizations to run faster on modern hardware: SIMD, vectorization, parallelization
  • Handles high cardinality datasets
  • SQL language with time-series extensions out-of-the-box from the Web Console
  • Small footprint due to the lack of code dependencies: 5MB executable
  • High performance for writes and reads translates into reduced infrastructure costs
  • Efficient disk storage
Typical application scenarios
  • Financial tick data
  • Industrial IoT
  • Application Metrics
  • Monitoring
Key customers

Banks & Hedge funds, Yahoo, OKX, Airbus, Aquis Exchange, Net App, Cloudera, Airtel, Copenhagen Atomics, Central Group

Licensing and pricing models
  • Open source Apache 2.0
  • QuestDB Enterprise
  • QuestDB Cloud
News

QuestDB and Raspberry Pi 5 benchmark, a pocket-sized powerhouse
8 May 2024

Build your own resource monitor with QuestDB and Grafana
6 May 2024

Does "vpmovzxbd" Scare You? Here's Why it Doesn't Have To
12 April 2024

Create an ADS-B flight radar with QuestDB and a Raspberry Pi
8 April 2024

Build a temperature IoT sensor with Raspberry Pi Pico & QuestDB
5 April 2024

Related products and services

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More resources
QuestDB
Recent citations in the news

QuestDB snares $12M Series A with hosted version coming soon
3 November 2021, TechCrunch

SQL Extensions for Time-Series Data in QuestDB
11 January 2021, Towards Data Science

QuestDB gets $12M Series A funding amid growing interest in time-series databases
3 November 2021, SiliconANGLE News

Read the Pitch Deck Database Startup QuestDB Used to Raise $12 Million
11 November 2021, Business Insider

Q&A: Nicolas Hourcard, QuestDB: The advantages of a time-series database
3 December 2020, Developer News

provided by Google News



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