What this PR does / why we need it:
Add more details on how partialResultCallback to reduce confusing with this feature
Which issue(s) this PR fixes(optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #
What this PR does / why we need it: Add more details on how partialResultCallback to reduce confusing with this feature Which issue(s) this PR fixes (optional, in
fixes #<issue number>(, fixes #<issue_number>, ...)
format, will close the issue(s) when PR gets merged): Fixes #Special notes for your reviewer: