OCI-51878
ALTER VECTOR INDEX owner_name.index_name REBUILD is not supported or disabled for given vector index configuration and/or parameter combination.
- owner_name: The owner of the index.
- index_name: The index name.
Cause
Alter index rebuild is not supported or disabled for given index and index parameter combination.
Action
Drop the NEIGHBOR PARTITION index and create the vector index again with the desired configuration.