Thx for your responses. My index are online. In fact my problem is not exactly the one I described :
This request is very long on 2.1.0-RC2 and 2.1.1 CREATE INDEX ON :Joueur(IDJoueur); CREATE INDEX ON :Tech(Tech); USING PERIODIC COMMIT LOAD CSV FROM "file:///tmp/X.csv" AS csvLine WITH csvLine[0] as csvidevt,csvLine[1] as csvtech,csvLine[2] as csvjoueur,csvLine[3] as csvunitejeton,csvLine[4] as csvsoldemouvement,csvLine[5] as csvmontantabond,csvLine[6] as csvbonusmouvement MERGE (joueur:Joueur { IDJoueur: csvjoueur}) MERGE (tech:Tech { Tech: csvtech}) MERGE (joueur)-[:CAVE{IdEvt: csvidevt,UniteJeton: csvunitejeton,SoldeMouvement:csvsoldemouvement,MontantAbond: csvmontantabond,BonusMouvement: csvbonusmouvement}]->(tech); And this one is fast ( 40 s ): CREATE INDEX ON :Joueur(IDJoueur); CREATE INDEX ON :Tech(Tech); USING PERIODIC COMMIT LOAD CSV FROM "file:///tmp/X.csv" AS csvLine MERGE (joueur:Joueur { IDJoueur: csvLine[2]}) MERGE (tech:Tech { Tech: csvLine[1]}) MERGE (joueur)-[:CAVE {IdEvt: csvLine[0],UniteJeton: csvLine[3] ,SoldeMouvement: csvLine[4],MontantAbond: csvLine[5],BonusMouvement: csvLine[6]}]->(tech); Do you have a clue? -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to neo4j+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.