OCI-51928
Data Manipulation Language (DML) on tables with in-memory neighbor graph vector index is not supported.
Cause
An attempt is being made to run Data Manipulation Language (DML) on tables that have Hierarchical Navigable Small Worlds (HNSW) vector index.
Action
Drop the Hierarchical Navigable Small Worlds (HNSW) vector indexes before performing Data Manipulation Language (DML) operations on the table.