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DBMS > Druid vs. Postgres-XL vs. XAP

System Properties Comparison Druid vs. Postgres-XL vs. XAP

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Editorial information provided by DB-Engines
NameDruid  Xexclude from comparisonPostgres-XL  Xexclude from comparisonXAP  Xexclude from comparison
DescriptionOpen-source analytics data store designed for OLAP queries on timeseries dataBased on PostgreSQL enhanced with MPP and write-scale-out cluster featuresHigh performant in-memory data grid for mission critical applications. Insight Edge from the same company extends XAP for AI/ML support, BI and other interfaces
Primary database modelRelational DBMS
Time Series DBMS
Relational DBMSDocument store
Key-value store infoValues are user defined objects
Secondary database modelsDocument storeObject oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.91
Rank#117  Overall
#57  Relational DBMS
#7  Time Series DBMS
Score0.47
Rank#213  Overall
#102  Relational DBMS
Score0.81
Rank#171  Overall
#27  Document stores
#30  Key-value stores
Websitedruid.apache.orgwww.postgres-xl.orgwww.gigaspaces.com/­products/­xap
Technical documentationdruid.apache.org/­docs/­latest/­designwww.postgres-xl.org/­documentationdocs.gigaspaces.com/­latest/­landing.html
DeveloperMetamarkets Group and contributorsGigaspaces Technologies
Initial release20122014 infosince 2012, originally named StormDB2000
Current release10 R1, October 201814.5.0, June 2019
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source infoMozilla public licenseOpen Source infoApache Version 2; Commercial licenses available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaCJava, C++, .Net
Server operating systemsLinux
OS X
Unix
Linux
macOS
Linux
macOS
Solaris
Windows
Data schemeyes infoschema-less columns are supportedyesschema-free
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.noyes infoXML type, but no XML query functionalityno infoXML can be used for describing objects metadata
Secondary indexesyesyesyes
SQL infoSupport of SQLSQL support via Apache Calcite adapteryes infodistributed, parallel query executionSQL-like query language and DML statements
APIs and other access methodsJSON over HTTPADO.NET
JDBC
native C library
ODBC
streaming API for large objects
GigaSpaces LRMI
Hibernate
JCache
JDBC
JPA
ODBC
RESTful HTTP API
Spring Data
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
.Net
C++
Java
Server-side scripts infoStored proceduresnouser defined functionsyes
Triggersnoyesyes infoEvent Listeners
Partitioning methods infoMethods for storing different data on different nodesShardinghorizontal partitioningSharding infoHash based
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesMaster-master replication infosynchronous or asynchronous
Master-slave replication infosynchronous or asynchronous
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infoMap-Reduce pattern can be built with XAP task executors
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency infoConsistency level configurable: ALL, QUORUM, ANY
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID infoMVCCACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlno infoavailable via extensionsfine grained access rights according to SQL-standardRole-based access control

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More resources
DruidPostgres-XLXAP
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