Databases with Inter-Operator (Vertical) Parallel Executio...


	1010data OLAP	2000	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP
	Adaptive Server Enterprise Acquired Company	1987	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	Acquired Company
	Aerospike NoSQL AI-Assisted	2009	Document / XML, Key/Value, Vector	Inter-Operator (Vertical)	NoSQL AI-Assisted
	AlloyDB OLAP Forked Code OLTP	2022	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP Forked Code OLTP
	Altibase OLTP	1999	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLTP
	chDB OLAP Acquired Company AI-Assisted	2023	Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	OLAP Acquired Company AI-Assisted
	ClickHouse OLAP AI-Assisted	2016	Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	OLAP AI-Assisted
	DuckDB OLAP AI-Assisted	2018	Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	OLAP AI-Assisted
GA	Gamma OLAP Abandoned Project OLTP	1986	Relational	Bushy, Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP Abandoned Project OLTP
	Hadapt OLAP Acquired Company Middleware	2009	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP Acquired Company Middleware
	Hazelcast Cache	2008	Key/Value	Inter-Operator (Vertical)	Cache
LI	libmdbx Forked Code MMAP	2015	Key/Value	Intra-Operator (Horizontal), Inter-Operator (Vertical)	Forked Code MMAP
	LMDB MMAP DBM AI-Assisted	2011	Key/Value	Intra-Operator (Horizontal), Inter-Operator (Vertical)	MMAP DBM AI-Assisted
	Materialize Streaming AI-Assisted	2019	Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	Streaming AI-Assisted
	MotherDuck Hosting Service	2022	Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	Hosting Service
NE	Neoview Abandoned Project	2007	Relational	Inter-Operator (Vertical), Bushy	Abandoned Project
	Netezza OLAP Acquired Company	1999	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP Acquired Company
	NonStop SQL Acquired Company OLTP	1987	Relational	Bushy, Inter-Operator (Vertical)	Acquired Company OLTP
	ObsessionDB OLAP Hosting Service	2024	Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	OLAP Hosting Service
	OceanBase	2010	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)
OP	open-gpdb OLAP Forked Code	2024	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP Forked Code
	PosDB OLAP	2017	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP
	RisingLight	2021	Relational	Inter-Operator (Vertical)
	Skyrise OLAP Serverless Query Engine	2019	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLAP Serverless Query Engine
	Splunk Acquired Company Search Engine	2002	Key/Value	Inter-Operator (Vertical), Intra-Operator (Horizontal)	Acquired Company Search Engine
	SurrealDB Serverless Multi-Model AI-Assisted	2016	Document / XML, Graph, Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical)	Serverless Multi-Model AI-Assisted
	SWC-DB Abandoned Project	2019	Column Family / Wide-Column, Key/Value	Inter-Operator (Vertical), Intra-Operator (Horizontal)	Abandoned Project
	Tibero OLTP	2003	Relational	Inter-Operator (Vertical), Intra-Operator (Horizontal)	OLTP
	Umbra OLAP OLTP	2018	Array / Matrix, Relational	Intra-Operator (Horizontal), Inter-Operator (Vertical), Bushy	OLAP OLTP
	Valkey Cache Forked Code NoSQL AI-Assisted	2024	Key/Value	Intra-Operator (Horizontal), Inter-Operator (Vertical)	Cache Forked Code NoSQL AI-Assisted