<p dir="auto">I got a problem that i don't really understand why this is happen.</p>
<p dir="auto">MATCH (n:USER) where n.email = '<a href="mailto:email@hotmail.com">email@hotmail.com</a>' return count(n);<br>
This return me 1.</p>
<p dir="auto">MATCH (n:USER{email:'<a href="mailto:email@hotmail.com">email@hotmail.com</a>'}) return count(n);<br>
This return me 1.</p>
<p dir="auto">MATCH (n:USER) return count(n);<br>
This return me 1150012.</p>
<p dir="auto">MATCH (n:USER) where n.email &lt;&gt; '<a href="mailto:email@hotmail.com">email@hotmail.com</a>' return count(n);<br>
This return me 1150012.</p>
<p dir="auto">Have you any idea why this can happen ?</p>
<p dir="auto">Thx</p>
<p dir="auto">Hi</p>
<p dir="auto">I am regularly using MERGE to apply data onto an existing graph. Today I am encountering a new error on a previous working MERGE. I believe this to be a bug.</p>
<p dir="auto">I am receiving error "More than one item in org.neo4j.helpers.collection.IteratorUtil$12@44c217b1, first:55110598, second:55114825" when trying to merge.</p>
<p dir="auto">There is a constraint ON :Impression(hash)    ONLINE (for uniqueness constraint)</p>
<p dir="auto">Trying a MERGE as simple as "MERGE (a:Impression {hash:'e612b20ac8dc47b1b08e1fbc67b5a3a2'}) ON CREATE SET a:Test ON MATCH SET a:Test" Causes the issue.</p>
<p dir="auto">Running "MATCH (a:Impression {hash:'e612b20ac8dc47b1b08e1fbc67b5a3a2'}) RETURN a" now returns 22 nodes.</p>
<p dir="auto">Running 2.3.2 ENTERPRISE</p>
<p dir="auto">Ubuntu 14.04</p>
<p dir="auto">Using Cypher, testing in Neo4j browser</p>
<p dir="auto">My database is 500GB, I could provide ssh access to a copy of it, if need be.</p>
<p dir="auto">Thank for your help.</p>