DBMS > Amazon Aurora vs. PostgreSQL vs. XTDB
System Properties Comparison Amazon Aurora vs. PostgreSQL vs. XTDB
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|Editorial information provided by DB-Engines|
|Name||Amazon Aurora Xexclude from comparison||PostgreSQL Xexclude from comparison||XTDB formerly named Crux Xexclude from comparison|
|Description||MySQL and PostgreSQL compatible cloud service by Amazon||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||A general purpose database with bitemporal SQL and Datalog and graph queries|
|Primary database model||Relational DBMS||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Document store|
|Secondary database models||Document store||Document store|
|Developer||Amazon||PostgreSQL Global Development Group www.postgresql.org/developer||Juxt Ltd.|
|Initial release||2015||1989 1989: Postgres, 1996: PostgreSQL||2019|
|Current release||15.2, February 2023||1.19, September 2021|
|License Commercial or Open Source||commercial||Open Source BSD||Open Source MIT License|
|Cloud-based only Only available as a cloud service||yes||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||hosted||FreeBSD|
|All OS with a Java 8 (and higher) VM|
|Typing predefined data types such as float or date||yes||yes||yes, extensible-data-notation format|
|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||yes specific XML-type available, but no XML query functionality.||no|
|SQL Support of SQL||yes||yes standard with numerous extensions||limited SQL, making use of Apache Calcite|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|Supported programming languages||Ada|
|Server-side scripts Stored procedures||yes||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||no|
|Partitioning methods Methods for storing different data on different nodes||horizontal partitioning||partitioning by range, list and (since PostgreSQL 11) by hash||none|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication||Source-replica replication other methods possible by using 3rd party extensions||yes, each node contains all data|
|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||Immediate Consistency|
|Foreign keys Referential integrity||yes||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no|
|User concepts Access control||fine grained access rights according to SQL-standard||fine grained access rights according to SQL-standard|
More information provided by the system vendor
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|Related products and services|
|3rd parties||Instaclustr: Fully Hosted & Managed PostgreSQL|
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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|Amazon Aurora||PostgreSQL||XTDB formerly named Crux|
|DB-Engines blog posts|
Cloud-based DBMS's popularity grows at high rates The popularity of cloud-based DBMSs has increased tenfold in four years Amazon - the rising star in the DBMS market
The popularity of cloud-based DBMSs has increased tenfold in four years Amazon - the rising star in the DBMS market
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|Conferences and events|
PGCon 2023, PostgreSQL Conference for Users and Developers
|Recent citations in the news|
Oracle Adds New AI-Enabling Features To MySQL HeatWave
Amazon Aurora PostgreSQL Adds Write-Through Cache to Improve Logical Replication Performance
What is Amazon Aurora? | Definition from TechTarget
Amazon Aurora cross-region disaster recovery capabilities now available in Asia Pacific (Melbourne) region
Amazon Aurora - Market Share, Competitor Insights in Relational Databases
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