DBMS > PostgreSQL vs. XTDB
System Properties Comparison PostgreSQL vs. XTDB
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||XTDB formerly named Crux Xexclude from comparison|
|Description||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 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|
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||Juxt Ltd.|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2019|
|Current release||14.1, November 2021||1.19, September 2021|
|License Commercial or Open Source||Open Source BSD||Open Source MIT License|
|Cloud-based only Only available as a cloud service||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|ScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.|
|Server operating systems||FreeBSD|
|All OS with a Java 8 (and higher) VM|
|Typing predefined data types such as float or date||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 specific XML-type available, but no XML query functionality.||no|
|SQL Support of SQL||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||.Net|
|Server-side scripts Stored procedures||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||partitioning by range, list and (since PostgreSQL 11) by hash||none|
|Replication methods Methods for redundantly storing data on multiple nodes||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|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency|
|Foreign keys Referential integrity||yes||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||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.||no|
|User concepts Access control||fine grained access rights according to SQL-standard|
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|Related products and services|
|3rd parties||EDB: BigAnimal is fully-managed PostgreSQL in the cloud from the database fanatics at EDB.|
pgDash: In-Depth PostgreSQL Monitoring.
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SQLFlow: Provides a visual representation of the overall flow of data. Automated SQL data lineage analysis across Databases, ETL, Business Intelligence, Cloud and Hadoop environments by parsing SQL Script and stored procedure.
Navicat for PostgreSQL is an easy-to-use graphical tool for PostgreSQL database development.
Fivetran: Quickly and easily centralize your on-premise and cloud databases.
Instaclustr: Fully Hosted & Managed PostgreSQL
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|PostgreSQL||XTDB formerly named Crux|
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