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DBMS > Drizzle vs. Impala vs. PouchDB vs. Qdrant

System Properties Comparison Drizzle vs. Impala vs. PouchDB vs. Qdrant

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Editorial information provided by DB-Engines
NameDrizzle  Xexclude from comparisonImpala  Xexclude from comparisonPouchDB  Xexclude from comparisonQdrant  Xexclude from comparison
Drizzle has published its last release in September 2012. The open-source project is discontinued and Drizzle is excluded from the DB-Engines ranking.
DescriptionMySQL fork with a pluggable micro-kernel and with an emphasis of performance over compatibility.Analytic DBMS for HadoopJavaScript DBMS with an API inspired by CouchDBA vector similarity Search Engine with neural network or semantic based matching
Primary database modelRelational DBMSRelational DBMSDocument storeSearch engine
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score17.79
Rank#40  Overall
#25  Relational DBMS
Score3.10
Rank#99  Overall
#18  Document stores
Score0.04
Rank#335  Overall
#21  Search engines
Websitewww.cloudera.com/­products/­open-source/­apache-hadoop/­impala.htmlpouchdb.comgithub.com/­qdrant/­qdrant
qdrant.tech
Technical documentationdocs.cloudera.com/­documentation/­enterprise/­latest/­topics/­impala.htmlpouchdb.com/­guidesqdrant.tech/­documentation
DeveloperDrizzle project, originally started by Brian AkerClouderaApache Software FoundationQdrant
Initial release2008201320122021
Current release7.2.4, September 20124.0.0, July 20217.1.1, June 2019
License infoCommercial or Open SourceOpen Source infoGNU GPLOpen Source infoApache Version 2Open SourceOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C++JavaScriptRust
Server operating systemsFreeBSD
Linux
OS X
Linuxserver-less, requires a JavaScript environment (browser, Node.js)Docker
Data schemeyesyesschema-free
Typing infopredefined data types such as float or dateyesyesnoyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonono
Secondary indexesyesyesyes infovia views
SQL infoSupport of SQLyes infowith proprietary extensionsSQL-like DML and DDL statementsnono
APIs and other access methodsJDBCJDBC
ODBC
HTTP REST infoonly for PouchDB Server
JavaScript API
RESTful HTTP/JSON API infoOpenAPI 3.0
Supported programming languagesC
C++
Java
PHP
All languages supporting JDBC/ODBCJavaScriptPython
Server-side scripts infoStored proceduresnoyes infouser defined functions and integration of map-reduceView functions in JavaScript
Triggersno infohooks for callbacks inside the server can be used.noyes
Partitioning methods infoMethods for storing different data on different nodesShardingShardingSharding infowith a proxy-based framework, named couchdb-lounge
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
selectable replication factorMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoquery execution via MapReduceyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyEventual Consistency
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnono
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyesyes infoby using IndexedDB, WebSQL or LevelDB as backend
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlPluggable authentication mechanisms infoe.g. LDAP, HTTPAccess rights for users, groups and roles infobased on Apache Sentry and Kerberosno

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DrizzleImpalaPouchDBQdrant
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