DBMS > BoltDB vs. EJDB vs. PostgreSQL
System Properties Comparison BoltDB vs. EJDB vs. PostgreSQL
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|Editorial information provided by DB-Engines|
|Name||BoltDB Xexclude from comparison||EJDB Xexclude from comparison||PostgreSQL Xexclude from comparison|
|Description||An embedded key-value store for Go.||Embeddable document-store database library with JSON representation of queries (in MongoDB style)||Widely used open source RDBMS Developed as objectoriented DBMS (Postgres), gradually enhanced with 'standards' like SQL|
|Primary database model||Key-value store||Document store||Relational DBMS with object oriented extensions, e.g.: user defined types/functions and inheritance. Handling of key/value pairs with hstore module.|
|Secondary database models||Document store|
|Developer||Softmotions||PostgreSQL Global Development Group www.postgresql.org/developer|
|Initial release||2013||2012||1989 1989: Postgres, 1996: PostgreSQL|
|Current release||14.4, June 2022|
|License Commercial or Open Source||Open Source MIT License||Open Source GPLv2||Open Source BSD|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||BSD|
|Typing predefined data types such as float or date||no||yes string, integer, double, bool, date, object_id||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 specific XML-type available, but no XML query functionality.|
|SQL Support of SQL||no||no||yes standard with numerous extensions|
|APIs and other access methods||in-process shared library||ADO.NET|
native C library
streaming API for large objects
|Supported programming languages||Go||Actionscript|
|Server-side scripts Stored procedures||no||no||user defined functions realized in proprietary language PL/pgSQL or with common languages like Perl, Python, Tcl etc.|
|Partitioning methods Methods for storing different data on different nodes||none||none||partitioning by range, list and (since PostgreSQL 11) by hash|
|Replication methods Methods for redundantly storing data on multiple nodes||none||none||Source-replica replication other methods possible by using 3rd party extensions|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||none||Immediate Consistency|
|Foreign keys Referential integrity||no||no typically not needed, however similar functionality with collection joins possible||yes|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||yes||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes Read/Write Locking||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||no|
|User concepts Access control||no||no||fine grained access rights according to SQL-standard|
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