presto-hive/src/main/java/io/prestosql/plugin/hive/security/LegacyAccessControl.java/LegacyAccessControl/checkCanDropColumn
class LegacyAccessControl:    @Override
    public void checkCanDropColumn(ConnectorSecurityContext context, SchemaTableName tableName)
    {
        if (!allowDropColumn) {
            denyDropColumn(tableName.toString());
        }
    }