Cypher query to return boolean value

[Joe Smith]

I would like to do something like this:

start n1=node(1), n2=node(2)
match n1-[r?:friend]-n2
return r is not null

so, when n1 and n2 are friends, the query returns true; otherwise
false. The query of cause failed. Any trick to get the query to return
a boolean value?

Thanks,
Joe

[Peter Neubauer]

Well,
I think this is the beginning of a feature - return data (primitives, nodes, relationships) that are computed and not part of the underlying data.

This would open the gates for read - views of the graph, higher order constructions and other cool stuff.

Need to think.

For the time being, looking for the query having a result or not gives the same effect for you?

/peter

Send from mobile.

[Andres Taylor]

Using predicates as boolean expressions is in the backlog already. Thanks for bumping it up in priority!

Andrés

[Axel Morgner]

I think this is the beginning of a feature - return data (primitives, nodes, relationships) that are computed and not part of the underlying data.

This would open the gates for read - views of the graph, higher order constructions and other cool stuff.

+1 !!

[Joe Smith]

Thanks all. For now, I will Pete's suggestion.

On Jun 13, 3:03 am, Andres Taylor <andres.tay...@neotechnology.com>
wrote: