Check transaction guard in apoc.import.json

[conker84]

Try with this in order to reproduce it

create constraint on (g:Stream) assert g.neo4jImportId is unique;
create constraint on (g:User) assert g.neo4jImportId is unique;
create constraint on (g:Team) assert g.neo4jImportId is unique;
create constraint on (g:Language) assert g.neo4jImportId is unique;
create constraint on (g:Game) assert g.neo4jImportId is unique;
​
/* alternatively this could be a bit faster
create index on :Stream(neo4jImportId);
create index on :Language(neo4jImportId);
create index on :Team(neo4jImportId);
create index on :Game(neo4jImportId);
create index on :User(neo4jImportId);
*/
​
call dbms.setConfigValue('dbms.transaction.timeout','0');
​
CALL apoc.import.json("https://devrel-data-science.s3.us-east-2.amazonaws.com/twitch_all.json", 
  {txBatchSize:100000, unwindBatchSize:10000});
​
call dbms.listQueries() yield queryId, query, elapsedTimeMillis;

Check constraints, at least it should output the necessary constraints and abort if they don't exist