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DBMS > Elasticsearch vs. PostgreSQL

System Properties Comparison Elasticsearch vs. PostgreSQL

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Our visitors often compare Elasticsearch and PostgreSQL with MongoDB, MySQL and Redis.

Editorial information provided by DB-Engines
NameElasticsearch  Xexclude from comparisonPostgreSQL  Xexclude from comparison
DescriptionA distributed, RESTful modern search and analytics engine based on Apache Lucene infoElasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metricWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL
Primary database modelSearch engineRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.
Secondary database modelsDocument store
Spatial DBMS
Document store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score160.24
Rank#8  Overall
#1  Search engines
Score577.50
Rank#4  Overall
#4  Relational DBMS
Websitewww.elastic.co/­elasticsearchwww.postgresql.org
Technical documentationwww.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.htmlwww.postgresql.org/­docs
DeveloperElasticPostgreSQL Global Development Group infowww.postgresql.org/­developer
Initial release20101989 info1989: Postgres, 1996: PostgreSQL
Current release7.8.0, June 202013.4, August 2021
License infoCommercial or Open SourceOpen Source infoApache Version 2; Elastic LicenseOpen Source infoBSD
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
ScaleGrid for PostgreSQL: Fully managed PostgreSQL hosting on AWS, Azure and DigitalOcean with high availability and SSH access on the #1 multi-cloud DBaaS.
Implementation languageJavaC
Server operating systemsAll OS with a Java VMFreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Data schemeschema-free infoFlexible type definitions. Once a type is defined, it is persistentyes
Typing infopredefined data types such as float or dateyesyes
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.noyes infospecific XML-type available, but no XML query functionality.
Secondary indexesyes infoAll search fields are automatically indexedyes
SQL infoSupport of SQLSQL-like query languageyes infostandard with numerous extensions
APIs and other access methodsJava API
RESTful HTTP/JSON API
ADO.NET
JDBC
native C library
ODBC
streaming API for large objects
Supported programming languages.Net
Groovy
Community Contributed Clients
Java
JavaScript
Perl
PHP
Python
Ruby
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
Server-side scripts infoStored proceduresyesuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.
Triggersyes infoby using the 'percolation' featureyes
Partitioning methods infoMethods for storing different data on different nodesShardingpartitioning by range, list and (since PostgreSQL 11) by hash
Replication methods infoMethods for redundantly storing data on multiple nodesyesSource-replica replication infoother methods possible by using 3rd party extensions
MapReduce infoOffers an API for user-defined Map/Reduce methodsES-Hadoop Connectorno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allImmediate Consistency
Foreign keys infoReferential integritynoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.Memcached and Redis integrationno
User concepts infoAccess controlfine grained access rights according to SQL-standard

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More resources
ElasticsearchPostgreSQL
DB-Engines blog posts

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Recent citations in the news

Amazon Elasticsearch Service is so flexible it wants to be called by a new name
10 September 2021, The Register

AWS Renames Amazon Elasticsearch Service to Amazon OpenSearch Service
15 September 2021, InfoQ.com

ElasticSearch Fork OpenSearch is Generally Available
1 September 2021, CTOvision

Elastic Announces the General Availability of the Elastic Cloud Terraform Provider
9 September 2021, Business Wire

Elastic Completes the Acquisition of Cmd | National Business | joplinglobe.com
21 September 2021, Joplin Globe

provided by Google News

Crunchy Data provides trusted PostgreSQL containers in partnership with DoD
21 September 2021, Geospatial World

Crunchy Data Delivers Trusted PostgreSQL Containers In Collaboration With The U.S. Department Of Defense
20 September 2021, Index-Journal

Instaclustr Including PostgreSQL in Managed Data Platform - Now in Public Preview
19 September 2021, insideBIGDATA

Instaclustr Adds PostgreSQL to Managed Platform in Public Preview
14 September 2021, Yahoo Finance

Oracle to PostgreSQL? 6 Reasons to Make Your Open Source Migration
16 September 2021, insideBIGDATA

provided by Google News

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