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Abdullah Alamoudi <bamousaa@gmail.com>
committed
on 14 Mar 17
Fix transaction logs and optimize upserts
Previously, Transaction logs didn't log previous image
which made it difficult to undo aborted tra… Show more
Fix transaction logs and optimize upserts

Previously, Transaction logs didn't log previous image

which made it difficult to undo aborted transactions

correctly. This change fixes that by always recording

previous image.

In addition, Upsert was performed as a delete if found

followed by an insert with two logs. This change makes

it a single operation with a single transaction log.

Change-Id: Ice5296267033cd7debe76894c864c6411f761d83

Reviewed-on: https://asterix-gerrit.ics.uci.edu/1554

Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

BAD: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>

Reviewed-by: Murtadha Hubail <hubailmor@gmail.com>

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