tree eb1bc99f94a29d8aee5d521204ef09fe431d5eae
parent 637e95524fdf5268f9d1c5b8d488a64eec57138e
author Abdullah Alamoudi <bamousaa@gmail.com> 1454141627 +0300
committer abdullah alamoudi <bamousaa@gmail.com> 1454315071 -0800

Add Support for Upsert Operation

This change adds support for upsert operations. it includes
creating a primary and secondary upsert operators in addition
to adding a new function "before" to the index operation call
back to correctly perform locking for the upsert operation.

Change-Id: I2705f43b6e6d187ee29b9ba5a7946d422990022a
Reviewed-on: https://asterix-gerrit.ics.uci.edu/476
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>