Improve apoc.periodic.iterate docs

[neo-technology-build-agent]

Issue by conker84 Monday May 24, 2021 at 09:23 GMT Originally opened as https://github.com/neo4j-contrib/neo4j-apoc-procedures/issues/1914

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there are many people who have issues with periodic iterate in 4.x when you return nodes and rels from the driving statement and then update them in the update statement. Since 4.x that might cause the actual change data to be attached to the outer transaction. So one solution here is to just return id(n) or id(r) from the first query and look them up again in the inner query (e.g. where id(n) = id) Can we update the docs for that and possibly also add a WARN section that points that out?