DBMS > Infobright vs. Memcached vs. Postgres-XL
System Properties Comparison Infobright vs. Memcached vs. Postgres-XL
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|Editorial information provided by DB-Engines|
|Name||Infobright Xexclude from comparison||Memcached Xexclude from comparison||Postgres-XL Xexclude from comparison|
|Description||High performant column-oriented DBMS for analytic workloads using MySQL or PostgreSQL as a frontend||In-memory key-value store, originally intended for caching||Based on PostgreSQL enhanced with MPP and write-scale-out cluster features|
|Primary database model||Relational DBMS||Key-value store||Relational DBMS|
|Secondary database models||Document store|
|Developer||Ignite Technologies Inc.; formerly InfoBright Inc.||Danga Interactive originally developed by Brad Fitzpatrick for LiveJournal|
|Initial release||2005||2003||2014 since 2012, originally named StormDB|
|Current release||1.6.18, January 2023||10 R1, October 2018|
|License Commercial or Open Source||commercial The open source (GPLv2) version did not support inserts/updates/deletes and was discontinued with July 2016||Open Source BSD license||Open Source Mozilla public license|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux|
|Typing predefined data types such as float or date||yes||no||yes|
|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.||no||yes XML type, but no XML query functionality|
|Secondary indexes||no Knowledge Grid Technology used instead||no||yes|
|SQL Support of SQL||yes||no||yes distributed, parallel query execution|
|APIs and other access methods||ADO.NET|
native C library
streaming API for large objects
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||no||no||user defined functions|
|Partitioning methods Methods for storing different data on different nodes||none||none||horizontal partitioning|
|Replication methods Methods for redundantly storing data on multiple nodes||Source-replica replication||none Repcached, a Memcached patch, provides this functionallity|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||ACID MVCC|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||no||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||no|
|User concepts Access control||fine grained access rights according to SQL-standard exploiting MySQL or PostgreSQL frontend capabilities||yes using SASL (Simple Authentication and Security Layer) protocol||fine grained access rights according to SQL-standard|
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