presto-atop/src/main/java/io/prestosql/plugin/atop/AtopMetadata.java/AtopMetadata/getColumnMetadata
class AtopMetadata:    @Override
    public ColumnMetadata getColumnMetadata(ConnectorSession session, ConnectorTableHandle tableHandle, ColumnHandle columnHandle)
    {
        String columnName = ((AtopColumnHandle) columnHandle).getName();

        for (ColumnMetadata column : getTableMetadata(session, tableHandle).getColumns()) {
            if (column.getName().equals(columnName)) {
                return column;
            }
        }

        AtopTableHandle atopTableHandle = (AtopTableHandle) tableHandle;
        SchemaTableName tableName = new SchemaTableName(atopTableHandle.getSchema(), atopTableHandle.getTable().getName());
        throw new ColumnNotFoundException(tableName, columnName);
    }