presto-hive/src/main/java/io/prestosql/plugin/hive/security/SqlStandardAccessControl.java/SqlStandardAccessControl/checkCanDropSchema
class SqlStandardAccessControl:    @Override
    public void checkCanDropSchema(ConnectorSecurityContext context, String schemaName)
    {
        if (!isDatabaseOwner(context, schemaName)) {
            denyDropSchema(schemaName);
        }
    }