Bumping this old query:

On Mon, Nov 22, 2010 at 10:11 AM, Peter <pe...@maubp.freeserve.co.uk> wrote:
> On Fri, Nov 19, 2010 at 12:20 PM, Peter <pe...@maubp.freeserve.co.uk> wrote:
>> Hi all,
>> I'd like to know more about Galaxy's column metadata for tabular files.
>> In the workflow editor under "Edit Step Actions" you can pick "Assign
>> Columns", and then give column numbers for five predefined cases:
>> Chrom, Start, End, Strand, Name.
>> Do these "named columns" get shown anywhere in the Galaxy UI?
>> For example, in a column select parameter widget?
> I've spotted some of these in the "peep" view (the right hand side
> history column) for interval data. Are they specific to interval data
> only, with no general mechanism available for other tabular data?
>> Is it possible to assign these columns in a tool's wrapper XML file?
>> From http://bitbucket.org/galaxy/galaxy-central/wiki/ToolConfigSyntax
>> I'm aware of the metadata_source attribute to *copy* the meta data
>> from the input file, but that isn't always relevant. Can I somehow
>> specify that my tool has tabular output where column 1 is "Name"?
>> Is it possible to introduce additional column types? e.g. "evalue" or
>> "Description".
>> Thanks,
>> Peter
> Peter

Is there any mechanism for tools to set tabular files' column metadata?

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