Fixing backfillRelationship for metadata_apsect

[rakhiagr]

Summary

For the metadata_aspect table, we have seen multiple 0 version records for a certain (urn, aspect and LATEST_VERSION) for a certain entities in one of the GMSes which has createdon as part of the PK. Due to which, backfillRelationship indeterministically considers the first row and not the latest row.

In this PR, this issue is fixed by introducing "ORDER BY" clause on createdon in a descending order and return the first row, which will confirm that we only consider the latest row.

Testing Done

./gradlew build

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Docs related to the changes have been added/updated (if applicable)

[jsdonn]

LGTM

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.28%. Comparing base (ff330d3) to head (f13e132).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #486   +/-   ##
=========================================
  Coverage     66.28%   66.28%           
  Complexity     1537     1537           
=========================================
  Files           137      137           
  Lines          5896     5896           
  Branches        655      655           
=========================================
  Hits           3908     3908           
  Misses         1711     1711           
  Partials        277      277           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.