Okay. I think that's a useful feature to add (some people asked about this
before too), so I've added an enhancement ticket for this:
http://www.pytables.org/trac/ticket/297
Francesc
2010/10/8 Charles Krohn <ctkr...@fallcreekresearch.com>
> Thanks Francesc. I wrote a script to copy data row-wise. It would be nice
> to see such a feature in PyTables 3.
>
> - Charles
>
> On Fri, Oct 8, 2010 at 6:18 AM, Francesc Alted <fal...@pytables.org>wrote:
>
>> Hi Charles,
>>
>> 2010/10/8 Charles Krohn <ctkr...@fallcreekresearch.com>
>>
>> Is there an easy way to delete columns from a table, or to generate a new
>>> table containing only certain columns? The best way I can think of is to
>>> create a copy of the source table's description, delete the desired columns,
>>> and build a new table using the copied description. This seems kind of
>>> cumbersome, though.
>>>
>>
>> Sorry, but there is currently not an 'easy' way to delete columns, so you
>> have go the copy venue. The thing is that table data is row-wise, so
>> removing a column always implies a complete rewrite of the table.
>>
>> I'm thinking on implementing a column-wise table object for PyTables so
>> that these kind of operation would be efficient to do. Probably that would
>> be implemented in PyTables 3.
>>
>> Cheers,
>>
>> --
>> Francesc Alted
>>
>>
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>
>
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--
Francesc Alted
------------------------------------------------------------------------------
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today.
http://p.sf.net/sfu/beautyoftheweb
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