OCI-63388
Timehouse cannot currently be enabled on a table that has object-level or column-level audit policies with SELECT action on it. This functionality will be supported soon.
Cause
An attempt is being made to enable Timehouse on a table that has object-level or column-level audit policies with SELECT action on it.
Action
Do not enable Timehouse on a table that has object-level or column-level audit policies with SELECT action on it.