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DBMS > Citus vs. PostGIS vs. PouchDB vs. SAP IQ

System Properties Comparison Citus vs. PostGIS vs. PouchDB vs. SAP IQ

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Editorial information provided by DB-Engines
NameCitus  Xexclude from comparisonPostGIS  Xexclude from comparisonPouchDB  Xexclude from comparisonSAP IQ infoformer name: Sybase IQ  Xexclude from comparison
DescriptionScalable hybrid operational and analytics RDBMS for big data use cases based on PostgreSQLSpatial extension of PostgreSQLJavaScript DBMS with an API inspired by CouchDBColumnar RDBMS optimized for Big Data analytics
Primary database modelRelational DBMSSpatial DBMSDocument storeRelational DBMS infocolumn-oriented
Secondary database modelsDocument storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.21
Rank#118  Overall
#56  Relational DBMS
Score22.69
Rank#29  Overall
#1  Spatial DBMS
Score2.28
Rank#115  Overall
#21  Document stores
Score2.75
Rank#104  Overall
#53  Relational DBMS
Websitewww.citusdata.compostgis.netpouchdb.comwww.sap.com/­products/­technology-platform/­sybase-iq-big-data-management.html
Technical documentationdocs.citusdata.compostgis.net/­documentationpouchdb.com/­guideshelp.sap.com/­docs/­SAP_IQ
DeveloperApache Software FoundationSAP, formerly Sybase
Initial release2010200520121994
Current release8.1, December 20183.4.2, February 20247.1.1, June 201916.1 SPS04, April 2019
License infoCommercial or Open SourceOpen Source infoAGPL, commercial license also availableOpen Source infoGPL v2.0Open Sourcecommercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCCJavaScript
Server operating systemsLinuxserver-less, requires a JavaScript environment (browser, Node.js)AIX
HP-UX
Linux
Solaris
Windows
Data schemeyesyesschema-freeyes
Typing infopredefined data types such as float or dateyesyesnoyes
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.yes infospecific XML type available, but no XML query functionalityyesnono
Secondary indexesyesyesyes infovia viewsyes
SQL infoSupport of SQLyes infostandard, with numerous extensionsyesnoyes
APIs and other access methodsADO.NET
JDBC
native C library
ODBC
streaming API for large objects
HTTP REST infoonly for PouchDB Server
JavaScript API
ADO.NET
JDBC
ODBC
RESTful HTTP API
Supported programming languages.Net
C
C++
Delphi
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
JavaScriptC
C#
C++
Java
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresuser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.user defined functionsView functions in JavaScriptyes
Triggersyesyesyesyes
Partitioning methods infoMethods for storing different data on different nodesShardingyes infobased on PostgreSQLSharding infowith a proxy-based framework, named couchdb-loungeshared disk or shared nothing architectures with SAP IQ Multiplexer
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replication infoother methods possible by using 3rd party extensionsyes infobased on PostgreSQLMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
SAP/Sybase Replication Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyesHadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes infoby using IndexedDB, WebSQL or LevelDB as backendyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyesno
User concepts infoAccess controlfine grained access rights according to SQL-standardyes infobased on PostgreSQLnofine grained access rights according to SQL-standard

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More resources
CitusPostGISPouchDBSAP IQ infoformer name: Sybase IQ
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