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DBMS > Cachelot.io vs. PostgreSQL vs. TDengine

System Properties Comparison Cachelot.io vs. PostgreSQL vs. TDengine

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Editorial information provided by DB-Engines
NameCachelot.io  Xexclude from comparisonPostgreSQL  Xexclude from comparisonTDengine  Xexclude from comparison
DescriptionIn-memory caching systemWidely used open source RDBMS infoDeveloped as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQLTime Series DBMS and big data platform
Primary database modelKey-value storeRelational DBMS infowith object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.Time Series DBMS
Secondary database modelsDocument store
Spatial DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#381  Overall
#63  Key-value stores
Score622.72
Rank#4  Overall
#4  Relational DBMS
Score1.57
Rank#154  Overall
#13  Time Series DBMS
Websitecachelot.iowww.postgresql.orggithub.com/­taosdata/­TDengine
tdengine.com
Technical documentationwww.postgresql.org/­docsdocs.tdengine.com
DeveloperPostgreSQL Global Development Group infowww.postgresql.org/­developerTDEngine, previously Taos Data
Initial release20151989 info1989: Postgres, 1996: PostgreSQL2019
Current release14.5, August 20223.0, August 2022
License infoCommercial or Open SourceOpen Source infoSimplified BSD LicenseOpen Source infoBSDOpen Source infoGPL V3, also commercial editions available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
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Implementation languageC++CC
Server operating systemsFreeBSD
Linux
OS X
FreeBSD
HP-UX
Linux
NetBSD
OpenBSD
OS X
Solaris
Unix
Windows
Linux
Windows
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyes
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.no
Secondary indexesnoyesno
SQL infoSupport of SQLnoyes infostandard with numerous extensionsStandard SQL with extensions for time-series applications
APIs and other access methodsMemcached protocolADO.NET
JDBC
native C library
ODBC
streaming API for large objects
JDBC
RESTful HTTP API
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
.Net
C
C++
Delphi
Java infoJDBC
JavaScript (Node.js)
Perl
PHP
Python
Tcl
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Rust
Server-side scripts infoStored proceduresnouser defined functions inforealized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.no
Triggersnoyesyes, via alarm monitoring
Partitioning methods infoMethods for storing different data on different nodesnonepartitioning by range, list and (since PostgreSQL 11) by hashSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replication infoother methods possible by using 3rd party extensionsyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency
Foreign keys infoReferential integritynoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlnofine grained access rights according to SQL-standardyes
More information provided by the system vendor
Cachelot.ioPostgreSQLTDengine
Specific characteristicsTDengine™ is an open-source, cloud-native time-series database (TSDB) optimized for...
» more
Competitive advantagesHigh performance: TDengine is the only time-series database that solves the high-cardinality...
» more
Typical application scenariosInternet of Things (IoT) Industrial Internet (IIoT) Connected Cars DevOps Energy...
» more
Market metricsTDengine has garnered over 19,000 stars on GitHub and is used in over 50 countries...
» more
Licensing and pricing modelsTDengine Community Edition is open-source software released under the AGPL 3.0 that...
» more

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More resources
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