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Consequences of addition or deletion of patients on Atlas cohorts

What consequences do changes in patient data (addition/deletion) or patients (merging/splitting) have on the existing ATLAS cohorts ?

Is there any web site link to an Atlas documentation describing which tables are involved when creating a cohort on ATLAS (e.g. which roles have omop_results.cohort, omop_results.cohort_cache, omop_webapi.cohort_definition, etc.).

How may we handle existing cohorts when changes occur on patient data ? How does ATLAS cache work (e.g. which tables are used to calculate the amount of patients from a cohort and how to update this indicator when a change occurs) ?

Many thanks for your help.

A similar question was asked here. You can follow that advice to clear the cohort cache when you update your CDM.