DBMS > PostgreSQL vs. Sphinx vs. XAP
System Properties Comparison PostgreSQL vs. Sphinx vs. XAP
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|Editorial information provided by DB-Engines|
|Name||PostgreSQL Xexclude from comparison||Sphinx Xexclude from comparison||XAP Xexclude from comparison|
|Description||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL||Open source search engine for searching in data from different sources, e.g. relational databases||High 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 model||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.||Search engine||Document store|
Key-value store Values are user defined objects
|Secondary database models||Document store||Object oriented DBMS|
|Developer||PostgreSQL Global Development Group www.postgresql.org/developer||Sphinx Technologies Inc.||Gigaspaces Technologies|
|Initial release||1989 1989: Postgres, 1996: PostgreSQL||2001||2000|
|Current release||12.0, October 2019||3.1.1, October 2018||14.5.0, June 2019|
|License Commercial or Open Source||Open Source BSD||Open Source GPL version 2, commercial licence available||Open Source Apache Version 2; Commercial licenses available|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||C||C++||Java, C++, .Net|
|Server operating systems||FreeBSD|
|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.||yes specific XML-type available, but no XML query functionality.||no XML can be used for describing objects metadata|
|Secondary indexes||yes||yes full-text index on all search fields||yes|
|SQL Support of SQL||yes standard with numerous extensions||SQL-like query language (SphinxQL)||SQL-like query language and DML statements|
|APIs and other access methods||native C library|
streaming API for large objects
|Proprietary protocol||GigaSpaces LRMI|
RESTful HTTP API
|Supported programming languages||.Net|
|C++ unofficial client library|
Perl unofficial client library
Ruby unofficial client library
|Server-side scripts Stored procedures||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.||no||yes|
|Triggers||yes||no||yes Event Listeners|
|Partitioning methods Methods for storing different data on different nodes||partitioning by range, list and (since PostgreSQL 11) by hash||Sharding Partitioning is done manually, search queries against distributed index is supported||Sharding Hash based|
|Replication methods Methods for redundantly storing data on multiple nodes||Master-slave replication other methods possible by using 3rd party extensions||none||Master-master replication synchronous or asynchronous|
Master-slave replication synchronous or asynchronous
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||yes Map-Reduce pattern can be built with XAP task executors|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency Consistency level configurable: ALL, QUORUM, ANY|
|Foreign keys Referential integrity||yes||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes The original contents of fields are not stored in the Sphinx index.||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes|
|User concepts Access control||fine grained access rights according to SQL-standard||no||Role-based access control|
More information provided by the system vendor
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|Related products and services|
|3rd parties||CYBERTEC: your professional partner for PostgreSQL services and Data Science based on PostgreSQL since 2000. With offices in Austria, Uruguay, Estonia and Switzerland, CYBERTEC operates worldwide!|
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