Cypher: Make updates check whether their target node(s) exist #343
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szarnyasg
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The failure is caused by an entry which is inserted and deleted in the same batch: $ ag 2336465348864
out-sf1/graphs/csv/bi/composite-merged-fk/inserts/dynamic/Comment/batch_id=2012-11-29/part-00000-ae9b25c5-14a3-4ba4-a54c-946e9fcd296d.c000.csv
19:2012-11-29T02:55:16.321+00:00|2336465348864|31.6.75.90|Internet Explorer|ok|2|2199023265458|75|2336465348858|
out-sf1/graphs/csv/bi/composite-merged-fk/deletes/dynamic/Comment/batch_id=2012-11-29/part-00000-068751da-9500-414b-93c9-81d776a2f2e9.c000.csv
2:2012-11-29T02:55:26.331+00:00|2336465348864It's worth noting that the entity is deleted 10.010 seconds after being inserted. The reason of the failure may be due to the isolation level (read committed) used by the Cypher implementation being insufficient for concurrent writes. This needs more investigation. |
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Fixes ldbc/ldbc_snb_interactive_v2_impls#2