Incomplete docs on undirected relationship in MERGE clause

[v-spassky]

Hello everyone! I am new to neo4j, and while reading the docs I stumbled upon these statements here:

MERGE can also be used with an undirected relationship. When it needs to create a new one, it will pick a direction.

The direction of the created relationship is arbitrary.

IMO, there is unnecessary ambiguity - why not specify the direction of the created relationship in this case? Moreover, in this course segment it is explicitly stated that the created relationship will be left to right:

... by default graph engine will create relation using left to right relation ...

I suggest mentioning this in the docs.

[stefano-ottolenghi]

Thanks for reporting! We'll see what we can do to clear up the confusion.

[stefano-ottolenghi]

We have now added some clarification to that section :) It will go live as soon as the manual is refreshed.
neo4j/docs-cypher#584