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Practical Gremlin - An Apache TinkerPop Tutorial

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If you are aware of any airports or routes that are missing from the air-routes data set, please add them as comments below. The basic rules for what is (and...

sample data

Graph DB is getting hot recently in China and I think this tutorial could be very helpful to newbies of the Graph DB world. Is there any plan to translate...

question
translations

As a rider to issue #115 , this issue is to track adding specific examples relative to the TinkerPop 3.6.0 release. There needs to be a new section in the...

New Gremlin features
additional examples

TinkerPop 3.4, 3.5, and 3.6 are all now released; 3.7 is pending. The manuscript needs updating to reflect the latest changes and possibly needs some deprecation warnings as well. This...

New Gremlin features
important
fix-in-second-edition

When discussing vertex/edge structure, add a mention that both IDs and Labels cannot be changed or deleted.

additional examples

Gremlin currently does not provide a way for a sack to contain multiple values. You can do it using a map, but it gets a bit messy. It would be...

additional examples
fix-in-second-edition

Add examples of using K,V pairs to see a traversal that will create vertices and or edges along the lines of: ``` nodes = [ ["name": "Kim", "breed": "Beagle"], ["name":...

improvements
additional examples
fix-in-second-edition

An interesting case where 3 `by` modulators are needed to parameterize a `between` predicate. ``` gremlin> g.withSideEffect('a',5). ......1> withSideEffect('b',8). ......2> V().values('runways'). ......3> where(between('a','b')). ......4> by(). ......5> by(math('a + 1')). ......6>...

additional examples
fix-in-second-edition

There are already Property Graph and SQL versions of the air route data. To help with comparisons of the different formats, it would be nice to also have a folder...

Fixed
sample data
additional-examples
v283

The air route data sets need to be updated with the latest versions.

Fixed
improvements
important
sample data
v283