Fill auxiliary tables for attestation

Hello everyone,

What is mean by the process "Fill auxiliary tables for attestation" (UID_Task ATT-K-AttestationHelperNewLevel)? its takes a very long time

In the recommendations I found this: https://support.oneidentity.com/identity-manager/kb/4266450/the-process-fill-attestation-rule-auxiliary-tables-att-k-helperattestationpolicy-may-block-the-dbqueue

But I don't understand what impact a flag "IsShowElementsInvolved" can have (I didn't find it in the documentation)

Explain, please

Thanks!