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DBMS > BoltDB vs. Druid vs. Postgres-XL vs. RocksDB

System Properties Comparison BoltDB vs. Druid vs. Postgres-XL vs. RocksDB

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Editorial information provided by DB-Engines
NameBoltDB  Xexclude from comparisonDruid  Xexclude from comparisonPostgres-XL  Xexclude from comparisonRocksDB  Xexclude from comparison
DescriptionAn embedded key-value store for Go.Open-source analytics data store designed for OLAP queries on timeseries dataBased on PostgreSQL enhanced with MPP and write-scale-out cluster featuresEmbeddable persistent key-value store optimized for fast storage (flash and RAM)
Primary database modelKey-value storeRelational DBMS
Time Series DBMS
Relational DBMSKey-value store
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.56
Rank#200  Overall
#34  Key-value stores
Score1.79
Rank#117  Overall
#58  Relational DBMS
#7  Time Series DBMS
Score0.42
Rank#217  Overall
#103  Relational DBMS
Score2.52
Rank#103  Overall
#19  Key-value stores
Websitegithub.com/­boltdb/­boltdruid.apache.orgwww.postgres-xl.orgrocksdb.org
Technical documentationdruid.apache.org/­docs/­latest/­designwww.postgres-xl.org/­documentationgithub.com/­facebook/­rocksdb/­wiki
DeveloperMetamarkets Group and contributorsFacebook, Inc.
Initial release201320122014 infosince 2012, originally named StormDB2013
Current release10 R1, October 20186.3.6, October 2019
License infoCommercial or Open SourceOpen Source infoMIT LicenseOpen Source infoApache license v2Open Source infoMozilla public licenseOpen Source infoBSD
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoJavaCC++
Server operating systemsBSD
Linux
OS X
Solaris
Windows
Linux
OS X
Unix
Linux
macOS
Data schemeschema-freeyes infoschema-less columns are supportedyesschema-free
Typing infopredefined data types such as float or datenoyesyesno
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.nonoyes infoXML type, but no XML query functionalityno
Secondary indexesnoyesyesno
SQL infoSupport of SQLnoSQL support via Apache Calcite adapteryes infodistributed, parallel query executionno
APIs and other access methodsJSON over HTTPADO.NET
JDBC
native C library
ODBC
streaming API for large objects
C++ API
Java API
Supported programming languagesGoClojure
JavaScript
PHP
Python
R
Ruby
Scala
.Net
C
C++
Delphi
Erlang
Java
JavaScript (Node.js)
Perl
PHP
Python
Tcl
C++
Java
Server-side scripts infoStored proceduresnonouser defined functionsno
Triggersnonoyesno
Partitioning methods infoMethods for storing different data on different nodesnoneShardinghorizontal partitioningnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes, via HDFS, S3 or other storage enginesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnoACID infoMVCCyes
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nononoyes
User concepts infoAccess controlnono infoavailable via extensionsfine grained access rights according to SQL-standardno

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More resources
BoltDBDruidPostgres-XLRocksDB
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