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Technical details of merging entity instances

To support merging of an entity, three properties have been added to the entity data model and corresponding columns are also added to the respective entity database table.

  • MergeStatus (Possible values: Active/Inactive)
  • MergedTo
  • Snapshot (PegaPS-Data-Snapshot)

In the following example PERSONS-5 is selected as the master, and PERSONS-1 as the duplicate

Entities before merge

Entity ID Merge Status Merge To
PERSONS-5 (Master) -- --
PERSONS-1 (Duplicate) -- --

Entities after merge

Entity ID Merge Status Merge To
PERSONS-5 (Master) Active --
PERSONS-1 (Duplicate) Inactive PERSONS-5
As PERSONS-5 is master it has the status as Active and PERSONS-1 would have the status as Inactive and the MergedTo of the master which is PERSONS-5.

All merged data is conserved to support unmerge functionality which will be made available in future releases. The master entity instance maintains the Snapshot (PegaPS-Data-Snapshot) embedded page; an image of master instance data before the merge

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