0, "At least one sub-operation failed: %s", [reduce(all_errors = "", error IN keys(errorMessages) | all_errors + ", " + error)]) RETURN 0 ]]> toInteger(sa.id) RETURN sa ", " MERGE (targetSa:Subaccount:SubAccount:Label { id: toInteger(sa.id) }) WITH targetSa, sa CALL apoc.refactor.mergeNodes( [targetSa, sa], { properties: 'discard', mergeRels: true } ) YIELD node RETURN node ", { batchSize: 1000, // Parallel: false is prone to deadlocking, so true with concurrency set to 0 causes // See https://github.com/neo4j-contrib/neo4j-apoc-procedures/issues/1768 parallel: true, // This parameter has an OBOE - setting it to 0 will cause 1 thread to run. // See https://github.com/neo4j-contrib/neo4j-apoc-procedures/issues/1782 concurrency: 0, retries: 0 } ) YIELD failedOperations, errorMessages CALL apoc.util.validate(failedOperations > 0, "At least one sub-operation failed: %s", [reduce(all_errors = "", error IN keys(errorMessages) | all_errors + ", " + error)]) RETURN 0 ]]>