home : https://sr.ht/~ged/Ruby-Kuzu
code : https://hg.sr.ht/~ged/Ruby-Kuzu
github : https://github.com/ged/ruby-kuzu
docs : https://deveiate.org/code/ruby-kuzu
A Ruby binding for the Kùzu embedded graph database.
require 'kuzu'
db = Kuzu.database
conn = db.connect
conn.query("CREATE NODE TABLE User(name STRING, age INT64, PRIMARY KEY (name))")
conn.query("CREATE NODE TABLE City(name STRING, population INT64, PRIMARY KEY (name))")
conn.query("CREATE REL TABLE Follows(FROM User TO User, since INT64)")
conn.query("CREATE REL TABLE LivesIn(FROM User TO City)")
# Load data.
conn.query("COPY User FROM \"user.csv\"")
conn.query("COPY City FROM \"city.csv\"")
conn.query("COPY Follows FROM \"follows.csv\"")
conn.query("COPY LivesIn FROM \"lives-in.csv\"")
# Execute a simple query.
result = conn.query("MATCH (a:User)-[f:Follows]->(b:User) RETURN a.name, f.since, b.name;")
# Output query result.
result.each do |tuple|
name, since, name2 = tuple.values_at( :a_name, :f_since, :b_name )
puts "%s follows %s since %lld", [ name, name2, since ]
end
- Ruby >= 3
- Kuzu >= 0.7
$ gem install kuzu
- Michael Granger ged@FaerieMUD.org
Copyright (c) 2025 Michael Granger
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.