presto-accumulo/src/main/java/io/prestosql/plugin/accumulo/AccumuloClient.java/AccumuloClient/validateCreateTable
class AccumuloClient:    private void validateCreateTable(ConnectorTableMetadata meta)
    {
        validateColumns(meta);
        validateLocalityGroups(meta);
        if (!AccumuloTableProperties.isExternal(meta.getProperties())) {
            validateInternalTable(meta);
        }
    }