In addition when the example is run 'live' it returns 0 rows not 1 row.
On Tuesday, April 15, 2014 11:53:19 AM UTC-5, Kevin Burton wrote:
>
> The documentation on MERGE gives the following example:
>
> MATCH (charlie:Person { name:'Charlie Sheen' }),(wallStreet:Movie {
> title:'Wall
> Street' })
> MERGE (charlie)-[r:ACTED_IN]->(wallStreet)
> RETURN r
>
> It states that "Charlie Sheen had already been marked as acting on Wall
> Street, so the existing relationship is found and returned. " My question
> is what if the nodes 'charlie' and 'wallstreet' exist but there is no
> 'ACTED_IN' relationship? Also to further complicate things say that Person
> has a constraint on 'name' to be unique and Movie has a constraint on
> 'title' to be unique. Since there is (in my scenario) no 'ACTED_IN'
> relationship MERGE fails to match but also because of the constraits *all*of
> the nodes cannot be created. So in this case will the RETURN r be null?
>
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