presto-local-file/src/main/java/io/prestosql/plugin/localfile/LocalFileMetadata.java/LocalFileMetadata/getColumnMetadata
class LocalFileMetadata:    @Override
    public ColumnMetadata getColumnMetadata(ConnectorSession session, ConnectorTableHandle tableHandle, ColumnHandle columnHandle)
    {
        return ((LocalFileColumnHandle) columnHandle).toColumnMetadata();
    }