release-22.2:Backport!6885

Merged Andrey Vertiprahov requested to merge cherry-pick-a2a6b4f2 into release-22.2

Fix calculate MetricType for delta type.

See merge request !6885 (merged)

(cherry picked from commit a2a6b4f2)

41878b1c Fix calculate MetricType for delta type. 67567994 Fix Probe.get_value. e8f4137f Add is_delta to collection.

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