DBMS > PostgreSQL vs. ScyllaDB vs. YDB
System Properties Comparison PostgreSQL vs. ScyllaDB vs. YDB
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||ScyllaDB Xexclude from comparison||YDB Xexclude from comparison|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Cassandra and DynamoDB compatible wide column store||A distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API|
|Primary database model||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Wide column store||Document store|
|Secondary database models||Document store|
Graph DBMS with Apache Age
Vector DBMS with pgvector extension
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||ScyllaDB||Yandex|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2015||2019|
|Current release||16.0, September 2023||ScyllaDB Open Source 5.0, July 2022|
|License Commercial or Open Source||Open Source BSD||Open Source Open Source (AGPL), commercial license available||Open Source Apache 2.0; commercial license available|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
Providers of DBaaS offerings, please contact us to be listed.
|Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.||Scylla Cloud: Create real-time applications that run at global scale with Scylla Cloud, the industry’s most powerful NoSQL DBaaS|
|Server operating systems||FreeBSD|
|Data scheme||yes||schema-free||Flexible Schema (defined schema, partial schema, schema free)|
|Typing predefined data types such as float or date||yes||yes||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||yes specific XML-type available, but no XML query functionality.||no||no|
|Secondary indexes||yes||yes cluster global secondary indices||yes|
|SQL Support of SQL||yes standard with numerous extensions||SQL-like DML and DDL statements (CQL)||SQL-like query language (YQL)|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|Proprietary protocol (CQL) compatible with CQL (Cassandra Query Language, an SQL-like language)|
RESTful HTTP API (DynamoDB compatible)
|RESTful HTTP API (DynamoDB compatible)|
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||yes, Lua||no|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication other methods possible by using 3rd party extensions||selectable replication factor Representation of geographical distribution of servers is possible||Active-passive shard replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Eventual Consistency|
Tunable Consistency can be individually decided for each write operation
|Foreign keys Referential integrity||yes||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no Atomicity and isolation are supported for single operations||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes in-memory tables||no|
|User concepts Access control||fine grained access rights according to SQL-standard||Access rights for users can be defined per object||Access rights defined for Yandex Cloud users|
|More information provided by the system vendor|
|Specific characteristics||ScyllaDB is the database for data-intensive apps that require high performance and...|
|Competitive advantages||Highly-performant (efficiently utilizes full resources of a node and network; millions...|
|Typical application scenarios||ScyllaDB is ideal for applications that require high throughput and low latency at...|
|Key customers||Discord, Epic Games, Expedia, Zillow, Comcast, Disney+ Hotstar, Samsung, ShareChat,...|
|Market metrics||ScyllaDB typically offers ~75% total cost of ownership savings, with ~5X higher throughput...|
|Licensing and pricing models||ScyllaDB Open Source - free open source software (AGPL) ScyllaDB Enterprise - subscription-based...|
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services|
|3rd parties||Timescale: Calling all PostgreSQL users – the 2023 State of PostgreSQL survey is now open! Share your favorite extensions, preferred frameworks, community experiences, and more. Take the survey today!
Navicat Monitor is a safe, simple and agentless remote server monitoring tool for PostgreSQL and many other database management systems.
Redgate webinars: A series of key topics for new PostgreSQL users.
Datasentinel: Platform for Monitoring and Analyzing the performance problems of your PostgreSQL Clusters
Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
Fujitsu Enterprise Postgres: An Enterprise Grade PostgreSQL with the flexibility of a hybrid cloud solution combined with industry leading security, availability and performance.
Instaclustr: Fully Hosted & Managed PostgreSQL
Aiven for PostgreSQL: Fully managed PostgreSQL for developers with 70+ extensions and flexible orchestration tools.
pgDash: In-Depth PostgreSQL Monitoring.
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
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