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DBMS > Datomic vs. PostGIS vs. SiteWhere

System Properties Comparison Datomic vs. PostGIS vs. SiteWhere

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Editorial information provided by DB-Engines
NameDatomic  Xexclude from comparisonPostGIS  Xexclude from comparisonSiteWhere  Xexclude from comparison
DescriptionDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilitySpatial extension of PostgreSQLM2M integration platform for persisting/querying time series data
Primary database modelRelational DBMSSpatial DBMSTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.55
Rank#144  Overall
#67  Relational DBMS
Score20.16
Rank#29  Overall
#1  Spatial DBMS
Score0.07
Rank#347  Overall
#33  Time Series DBMS
Websitewww.datomic.compostgis.netgithub.com/­sitewhere/­sitewhere
Technical documentationdocs.datomic.compostgis.net/­documentationsitewhere1.sitewhere.io/­index.html
DeveloperCognitectSiteWhere
Initial release201220052010
Current release1.0.7180, July 20243.4.2, February 2024
License infoCommercial or Open Sourcecommercial infolimited edition freeOpen Source infoGPL v2.0Open Source infoCommon Public Attribution License Version 1.0
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJava, ClojureCJava
Server operating systemsAll OS with a Java VMLinux
OS X
Windows
Data schemeyesyespredefined scheme
Typing infopredefined data types such as float or dateyesyesyes
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.noyesno
Secondary indexesyesyesno
SQL infoSupport of SQLnoyesno
APIs and other access methodsRESTful HTTP APIHTTP REST
Supported programming languagesClojure
Java
Server-side scripts infoStored proceduresyes infoTransaction Functionsuser defined functions
TriggersBy using transaction functionsyes
Partitioning methods infoMethods for storing different data on different nodesnone infoBut extensive use of caching in the application peersyes infobased on PostgreSQLSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoBut extensive use of caching in the application peersyes infobased on PostgreSQLselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes inforecommended only for testing and developmentnono
User concepts infoAccess controlnoyes infobased on PostgreSQLUsers with fine-grained authorization concept

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More resources
DatomicPostGISSiteWhere
DB-Engines blog posts

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