Neo4j-community-3.5.12, cypher-shell 1.1.12
I use the dataset generated by LDBC SNB data generator with scale factor 10.
There are kinds of nodes with original id in the raw dataset. I set these original id as ori_id
property as integer type in every node.
In the dataset I generated, there are 7435696
nodes with type post
and 595453
nodes with type forum
. The number of post
nodes is about ten times that of forum
nodes.
The following are the pproblems I encountered:
Query 1: match (n:forum) set n.ori_id = n.ori_id * 2;
just took 5427 ms to process.
Query 2 match (n:post) set n.ori_id = n.ori_id * 2;
took 6 hours but still did not finish.
I want to know why the query 2 will need so long time or if it encountered some problems when processing.