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Head's Up! These forums are read-only. All users and content have migrated. Please join us at community.neo4j.com.

lingvisa
Graph Fellow
since ‎12-19-2019
‎12-14-2022

User Statistics

  • 295 Posts
  • 5 Solutions
  • 25 Kudos given
  • 26 Kudos received

User Activity

What's the best cypher command to delete the whole graph?

12-08-2022
I usually use:   match (n) detach delete n   Even for a small graph, this usually takes a long time. Is there a better way to delete the graph using cypher? 

Why does this relationship query return results that don't meet condition?

11-22-2022
MATCH p=()-[r:coOccur]->() WHERE r.confidence>0.9 RETURN p limit 25 I have a graph that have all Tag nodes and their coOccur relationship. The coOccur has a property confidence which has value between 0 and 1. However, my query above also returns r...

Why parallel:true can't be used in apoc.load.csv?

11-12-2022
CALL apoc.periodic.iterate("CALL apoc.load.csv('/Users/martin/test/test.csv', {nullValues:['','na','NAN',false], sep:' ' }) yield map as row", "MERGE (mGenerics {nid: row.nid})ON CREATE SET m += row ON MATCH SET m += row RETURN count(m) as mcount", ...

Is it possible to speed up relationship queries?

10-24-2022
  MATCH (m:Sports)-[r:hasPlayer]-(n:Sports) RETURN properties(n) as properties1, properties(m) as properties2 limit 100000   This takes quite a while to complete given around 50000 Sports node. I hope it can be finished under one 1 second, since it's...

Why is this query invalid?

11-30-2021
CALL apoc.periodic.iterate( "MATCH (n:Article) return n.nid", "REMOVE n.bertEmbedding", {batchSize:30000, parallel:false, iterateList:true}) The error message: org.neo4j.graphdb.QueryExecutionException: Variable n not defined (line 1, column 65 (...
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