Dgraph

DgraphFile:Dgraph-logo.svg

Developer(s)| Dgraph Labs
Initial release| 2015 December; 10 years ago (2015 December) [1]
Stable release|

20.03.1[2] / April 25, 2020; 6 years ago (2020-04-25) [2]

Written in| Go
Available in| Go, C#, Java, JavaScript, Python, Dart, Elixir, Rust[3]
Type| Graph database[4]
License|

* Apache Public License (APL)
* Dgraph Community License (DCL)[5]

Website| dgraph.io

Dgraph is a graph database management system developed by Dgraph Labs. It is described by its developers as an open-source, low latency, high throughput, native, and distributed graph database. It is fully implemented in Go.[6][7] Dgraph uses Raft for shard replication and a custom transactional protocol for snapshot-isolated cross-shard transactions.[8][9][10]

## Contents

* 1 History
* 2 Query Language
* 3 Dgraph Labs
* 4 References

## History

The first version of Dgraph v0.1 was released in December 2015, and the first production-ready major release with v1.0.0 in December 2017.[1][11]

In May 2016, Dgraph raised $1.1M Seed funding from Bain Capital, Blackbird Group, Mike Cannon-Brookes, and Mark Cummins ventures.[12][13][14]

In December 2017, Dgraph raised $1.85M Seed funding from Bain Capital, Blackbird Group, Mike Cannon-Brookes, and AirTree ventures.[15][16]

In July 2019, Dgraph secured $11.5M Series A Funding led by Redpoint Ventures, with participation from previous backers Bain Capital, Blackbird Group, and Mike Cannon-Brookes, and AirTree Ventures.[17][18][19][20][21]

## Query Language

The query language of Dgraph, GraphQL+-, is a variation of GraphQL by Facebook. Since GraphQL wasn't developed for Graph databases, Dgraph added and removed features to the language to better support graph operations.[22]

Starting from version 20.03.0, Dgraph natively supports GraphQL.[23]

## Dgraph Labs

Dgraph is developed by Dgraph Labs, based in the San Francisco Bay Area and Bangalore.[1] Dgraph’s board of directors includes Xoogler Manish Jain (Founder/CEO of Dgraph), Salil Deshpande (Partner at Bain Capital), and Satish Dharmaraj (Partner at Redpoint Ventures).[24]

Dgraph Labs is part of the joint development collaboration under GraphQL Foundation.[25]

## References

1. ↑ 1.0 1.1 1.2 "Celebrating 10,000 GitHub Stars". https://blog.dgraph.io/post/10k-github-stars/. Retrieved 4 February 2020.
2. ↑ 2.0 2.1 "Github - Release page" (in en). https://github.com/dgraph-io/dgraph/releases. Retrieved 10 May 2020.
3. ↑ "Clients — Doc v20.03.1". https://dgraph.io/docs/clients/. Retrieved 10 May 2020.
4. ↑ "Top Graph Database Startups" (in en). Tracxn Technologies. https://tracxn.com/d/trending-themes/Startups-in-Graph-Database. Retrieved 10 May 2020.
5. ↑ "Dgraph Licenses". https://github.com/dgraph-io/dgraph/blob/master/LICENSE.md. Retrieved 4 February 2020.
6. ↑ "Dgraph System Properties". DB Engines. https://db-engines.com/en/system/Dgraph. Retrieved 4 February 2020.
7. ↑ "Dgraph Labs - AngelList". AngelList. https://angel.co/company/dgraph-labs. Retrieved 4 February 2020.
8. ↑ "Dgraph: Synchronously Replicated, Transactional and Distributed Graph Database" (PDF). Dgraph Labs. https://github.com/dgraph-io/dgraph/raw/master/paper/dgraph.pdf. Retrieved 13 May 2020.
9. ↑ "Analyses". Jepsen.io. https://jepsen.io/analyses. Retrieved 12 May 2020.
10. ↑ "Jepsen: Dgraph 1.1.1". https://jepsen.io/analyses/dgraph-1.1.1. Retrieved 12 May 2020.
11. ↑ "Dgraph announces its first production-ready graph database release and plans for the future". SD Times (SD Times). 19 December 2017. https://sdtimes.com/consistent-replication/dgraph-announces-first-production-ready-graph-database-release-plans-future/. Retrieved 10 May 2020.
12. ↑ "Ex-Googler startup DGraph Labs raises US$1.1 million in seed funding round to build industry's first open source, native and distributed graph database". Globe News Wire. https://www.globenewswire.com/news-release/2016/05/17/840895/0/en/Ex-Googler-startup-DGraph-Labs-raises-US-1-1-million-in-seed-funding-round-to-build-industry-s-first-open-source-native-and-distributed-graph-database.html. Retrieved 4 February 2020.
13. ↑ "DGraph Labs Raises US$1.1M in Seed Funding". FinSMEs. 17 May 2016. http://www.finsmes.com/2016/05/dgraph-labs-raises-us1-1m-in-seed-funding.html?via=indexdotco. Retrieved 4 February 2020.
14. ↑ "Mark Cummins at crunchbase". https://www.crunchbase.com/person/mark-cummins. Retrieved 10 May 2020.
15. ↑ "dgraph labs - Funding". Index. https://index.co/company/dgraph-labs/funding. Retrieved 4 February 2020.
16. ↑ "The Funded: 14 Bay Area startup rounds rake in $400M at midweek". www.bizjournals.com (Silicon Valley Business Journal). https://www.bizjournals.com/sanjose/news/2017/12/20/the-funded-14-bay-area-startup-rounds-rake-in-400m.html. Retrieved 11 May 2020.
17. ↑ "Dgraph partnership with AirTree" (in en-AU). AirTree. https://www.airtree.vc/companies/dgraph. Retrieved 10 May 2020.
18. ↑ "Dgraph raises $11.5 million for scalable graph database solutions". Venture Beat. 31 July 2019. https://venturebeat.com/2019/07/31/dgraph-raises-11-5-million-for-scalable-graph-database-solutions/. Retrieved 4 February 2020.
19. ↑ "Dgraph Labs Secures $11.5 Million in Latest Funding Round". DBTA. 31 July 2019. http://www.dbta.com/Editorial/News-Flashes/Dgraph-Labs-Secures-115-Million-in-Latest-Funding-Round-133315.aspx. Retrieved 4 February 2020.
20. ↑ Anadiotis, George. "Graph database reinvented: Dgraph secures $11.5M to pursue its unique and opinionated path" (in en). ZDNet. https://www.zdnet.com/article/you-can-go-your-own-graph-database-way-dgraph-secures-115m-to-pursue-its-opinionated-path/. Retrieved 4 February 2020.
21. ↑ "Why Investment Giant Carlyle Group Is Becoming a C-Corp" (in en). Fortune (Fortune). https://fortune.com/2019/07/31/term-sheet-wednesday-july-31/. Retrieved 11 May 2020.
22. ↑ "Query language — Doc v20.03.1". https://docs.dgraph.io/query-language/. Retrieved 10 May 2020.
23. ↑ "Dgraph GraphQL hits GA with v20.03.1 - Blog". https://dgraph.io/blog/post/dgraph-graphql-hits-ga/.
24. ↑ Jain, Manish Rai. "How Dgraph Labs Raised Series A - Dgraph Blog". https://blog.dgraph.io/post/how-dgraph-labs-raised-series-a/. Retrieved 4 February 2020.
25. ↑ Foundation, The Linux (12 March 2019). "The GraphQL Foundation Announces Collaboration with the Joint Development Foundation to Drive Open Source and Open Standards". The Linux Foundation. https://www.linuxfoundation.org/press-release/2019/03/the-graphql-foundation-announces-collaboration-with-the-joint-development-foundation-to-drive-open-source-and-open-standards/. Retrieved 10 May 2020.

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