DBMS > OpenSearch vs. Realm vs. TiDB
System Properties Comparison OpenSearch vs. Realm vs. TiDB
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|Editorial information provided by DB-Engines|
|Name||OpenSearch Xexclude from comparison||Realm Xexclude from comparison||TiDB Xexclude from comparison|
|Description||A distributed, RESTful search and analytics engine forked from Elasticsearch and based on Apache Lucene||A DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data||TiDB is an open source distributed SQL database that supports Hybrid Transactional/Analytical Processing (HTAP) workloads. It is MySQL compatible and features horizontal scalability, strong consistency, and high availability.|
|Primary database model||Search engine||Document store||Relational DBMS|
|Secondary database models||Vector DBMS||Document store|
|Developer||Amazon Web Services||Realm, acquired by MongoDB in May 2019||PingCAP, Inc.|
|Current release||2.5.0, January 2023||7.2.0, June 2023|
|License Commercial or Open Source||Open Source Apache Version 2.0||Open Source||Open Source Apache 2.0|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
Providers of DBaaS offerings, please contact us to be listed.
|Aiven for OpenSearch: Fully managed open source search and analytics suite including search engine, NoSQL document database, and visualization interface.||TiDB Cloud: Fully-managed TiDB Service. Bring everything great about TiDB to the cloud.|
|Implementation language||Java||Go, Rust|
|Server operating systems||All OS with a Java VM||Android|
|Data scheme||schema-free Flexible type definitions. Once a type is defined, it is persistent||yes||yes|
|Typing predefined data types such as float or date||yes||yes||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||no|
|Secondary indexes||yes All search fields are automatically indexed||yes||yes|
|SQL Support of SQL||SQL-like query language||no||yes|
|APIs and other access methods||Java API|
RESTful HTTP/JSON API
|Supported programming languages||Go|
Ruby Elasticsearch client
Java with Android only
|Server-side scripts Stored procedures||yes||no runs within the applications so server-side scripts are unnecessary||no|
|Triggers||yes by using the 'percolation' feature||yes Change Listeners||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding||none||horizontal partitioning (by key range)|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||none||Using Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes with TiSpark Connector|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency Synchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no||yes full support since version 6.6|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||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.||yes In-Memory realm||no|
|User concepts Access control||yes||Fine grained access rights according to SQL-standard|
|More information provided by the system vendor|
|Specific characteristics||OpenSearch is a highly scalable and extensible open-source software suite for search,...|
|TiDB is an advanced open-source, distributed SQL database for modern application...|
|Competitive advantages||Distributed as fully open source under Apache License, Version 2.0 (ALv2), OpenSearch...|
|- HORIZONTAL SCALING : TiDB grants total transparency into your data workloads without...|
|Typical application scenarios||OpenSearch is used across a broad range of search, analytics, and observability applications....|
|TiDB is ideal for transactional applications that require extreme scalability and...|
|Key customers||Block, Pinterest, Catalyst, Bolt, Capcom, Shopee (E-commerce), JD Cloud & AI (Cloud...|
|Market metrics||34K+ GitHub stars 5K+ members in TiDB Community Slack 1K+ community contributors...|
|Licensing and pricing models||The OpenSearch Project offers open source software licensed under Apache License...|
|TiDB Community : Free open source software (Apache 2.0) TiDB Self-Hosted : Enterprise...|
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services|
|3rd parties||Aiven for OpenSearch comes with OpenSearch Dashboards included, giving a fully-featured user interface and visualization platform for your data.
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
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