presto-atop/src/main/java/io/prestosql/plugin/atop/AtopMetadata.java/AtopMetadata/getTableMetadata
class AtopMetadata:    @Override
    public ConnectorTableMetadata getTableMetadata(ConnectorSession session, ConnectorTableHandle tableHandle)
    {
        AtopTableHandle atopTableHandle = (AtopTableHandle) tableHandle;
        ImmutableList.Builder<ColumnMetadata> columns = ImmutableList.builder();
        for (AtopColumn column : atopTableHandle.getTable().getColumns()) {
            columns.add(new ColumnMetadata(column.getName(), typeManager.getType(column.getType())));
        }
        SchemaTableName schemaTableName = new SchemaTableName(atopTableHandle.getSchema(), atopTableHandle.getTable().getName());
        return new ConnectorTableMetadata(schemaTableName, columns.build());
    }