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Support Article

getDistinctValuesForProperty API bypasses index to query source

SA-48356

Summary



Pega Marketing utilizes the getDistinctValuesForProperty API to allow Distinct Values indexes to pre-calculate distinct values for certain properties and speed up retrieval of these values.

When the Distinct Value query is unable to match the filter passed in the pre-aggregated index table, then it queries the source table to calculate these results. This allows for accuracy. However, this results in performance degradation when the target table is large.



Error Messages



Not Applicable


Steps to Reproduce



Unknown


Root Cause



The API was working as designed; however, the API design did not consider this use case.


Resolution



Apply HFix-39090.


Published February 19, 2018 - Updated October 8, 2020

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