Any extended Schema is actually an extension to the columns of the corresponding default Schema (in this case: trackingLogRcp).
Any sort of operation to the extended columns would pertain to the default schema records.
So a query performed over extended Schema (say abc:trackingLogRcp) would affect it's equivalent columns of trackingLogRcp.
Kindly confirm are you experiencing any issues while performing this operation.
I'm setting following error while doing insert/update operation in extended schema (abc:trackingStatus) .
Or I need to add unique Pk in extended schema?