DBMS > Hypertable vs. TimescaleDB
System Properties Comparison Hypertable vs. TimescaleDB
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|Editorial information provided by DB-Engines|
|Name||Hypertable Xexclude from comparison||TimescaleDB Xexclude from comparison|
|Hypertable has stopped its further development with March 2016 and is removed from the DB-Engines ranking.|
|Description||An open source BigTable implementation based on distributed file systems such as Hadoop||A time series DBMS optimized for fast ingest and complex queries, based on PostgreSQL|
|Primary database model||Wide column store||Time Series DBMS|
|Secondary database models||Relational DBMS|
|Current release||0.9.8.11, March 2016||2.11.0, May 2023|
|License Commercial or Open Source||Open Source GNU version 3. Commercial license available||Open Source Apache 2.0|
|Cloud-based only Only available as a cloud service||no||no|
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|Server operating systems||Linux|
Windows an inofficial Windows port is available
|Typing predefined data types such as float or date||no||numerics, strings, booleans, arrays, JSON blobs, geospatial dimensions, currencies, binary data, other complex data types|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||yes|
|Secondary indexes||restricted only exact value or prefix value scans||yes|
|SQL Support of SQL||no||yes full PostgreSQL SQL syntax|
|APIs and other access methods||C++ API|
native C library
streaming API for large objects
|Supported programming languages||C++|
|Server-side scripts Stored procedures||no||user defined functions, PL/pgSQL, PL/Tcl, PL/Perl, PL/Python, PL/Java, PL/PHP, PL/R, PL/Ruby, PL/Scheme, PL/Unix shell|
|Partitioning methods Methods for storing different data on different nodes||Sharding||yes, across time and space (hash partitioning) attributes|
|Replication methods Methods for redundantly storing data on multiple nodes||selectable replication factor on file system level||Source-replica replication with hot standby and reads on replicas|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no|
|User concepts Access control||no||fine grained access rights according to SQL-standard|
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