ORA-52401
ALTER INDEX [owner_name].[index_name] REBUILD ONLINE failed. Cannot rebuild vector index in an online manner without enabling Two-Stage patch 37956740.
- owner_name: The owner of the index.
- index_name: The index name.
Cause
An attempt is being made to rebuild a vector index in an online manner without enabling Two-Stage patch 37956740.
Action
Install and enable the patch on this node and rebuild the index again.