DBMS > Qdrant vs. SpaceTime vs. Teradata Aster
System Properties Comparison Qdrant vs. SpaceTime vs. Teradata Aster
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|Editorial information provided by DB-Engines|
|Name||Qdrant Xexclude from comparison||SpaceTime Xexclude from comparison||Teradata Aster Xexclude from comparison|
|Teradata Aster has been integrated into other Teradata systems and therefore will be removed from the DB-Engines ranking.|
|Description||A high-performance vector database with neural network or semantic-based matching||SpaceTime is a spatio-temporal DBMS with a focus on performance.||Platform for big data analytics on multistructured data sources and types|
|Primary database model||Vector DBMS||Spatial DBMS||Relational DBMS|
|Secondary database models||Relational DBMS|
|License Commercial or Open Source||Open Source Apache Version 2.0||commercial||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Server operating systems||Docker|
|Data scheme||schema-free||yes||Flexible Schema (defined schema, partial schema, schema free) defined schema within the relational store; partial schema or schema free in the Aster File Store|
|Typing predefined data types such as float or date||Numbers, Strings, Geo, Boolean||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||yes in Aster File Store|
|Secondary indexes||yes Keywords, numberic ranges, geo, full-text||no||yes|
|SQL Support of SQL||no||A subset of ANSI SQL is implemented||yes|
|APIs and other access methods||gRPC|
RESTful HTTP/JSON API OpenAPI 3.0
|RESTful HTTP API||ADO.NET|
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||no||R packages|
|Partitioning methods Methods for storing different data on different nodes||Sharding||Fixed-grid hypercubes||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Collection-level replication||Real-time block device replication (DRBD)||yes Dimension tables are replicated across all nodes in the cluster. The number of replicas for the file store can be configured.|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||yes SQL Map-Reduce Framework|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency, tunable consistency||Immediate Consistency||Immediate Consistency or Eventual Consistency depending on configuration|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||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||no||no|
|User concepts Access control||Key-based authentication||yes||fine grained access rights according to SQL-standard|
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