how to ignore case of edge label while traversing

[Praneeth Dogiparthi]

Hi,

suppose i have two edges one with label FOLLOW and Follow can i tell gremlin to ignore case while traversing if yes how can i do it and is it possible to ignore case when using has 

example 

.has("gender", "MALE")

.has("gender", "Male")

i need to ignore cases.

[Stephen Mallette]

Sorry, just noticing that no one answered this one. There is nothing in TinkerPop that allows that sort of thing at this time. There are predicates for specific graph providers that would allow this (like, DSE Graph's token() predicates I think are case insensitive and I suppose any graph providers regex options could be written to match however you'd like). 

While TinkerPop recently introduced TextP 

http://tinkerpop.apache.org/docs/3.4.0/upgrade/#_text_predicates

it does not yet contain case-insensitive or regex options. We've struggled with how to allow for a regex, as there are so many different dialects of that search language. On the other hand, in recent times, I've felt like we set a precedence with math() step to simply choose a "dialect" and say, "that's what we support". Perhaps the next time regex is discussed we can commit to it.

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[Daniel Kuppitz]

Generally, it's a good idea to normalize the values at write-time. It costs almost no time to .toUpperCase() String values at write-time; doing a case-insensitive search, on the other hand, will have a big impact on the overall performance (as you usually read more often than you write).

Cheers,

Daniel

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[Nivas Umapathy]

There is a liker(string) which can take a regex. You can do a case insensitive like on this.