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From John Vines <john.w.vi...@ugov.gov>
Subject RE: Determine columns in a table?
Date Sun, 25 Mar 2012 19:40:07 GMT
Another option for you would be to create a table for indexing your column
information. That way a quick scan can give you everything.

Sent from my phone, so pardon the typos and brevity.
On Mar 25, 2012 3:06 PM, "Robert Vesse" <rvesse@yarcdata.com> wrote:

>  To clarify my question I'm not looking to see why a scan doesn't return
> data.  What I'm wanting to know is what columns a full table scan (taking
> relevant scan authorizations into account) will yield without doing the
> full table scan?
>
> But it sounds like the only way is to do the table scan because in my
> usage scenario users won't have HDFS access
>
> Rob
>
>  ------------------------------
> *From:* John Vines [john.w.vines@ugov.gov]
> *Sent:* 24 March 2012 16:27
> *To:* accumulo-user@incubator.apache.org
> *Subject:* Re: Determine columns in a table?
>
>   Individual keys have their own visibility and it is possible to have
> keys with similar columns to have different visibilities.
>
> That said, we don't track the visibilities being used, so the only way is
> the mechanism Eric suggested.
>
> Sent from my phone, so pardon the typos and brevity.
> On Mar 24, 2012 5:30 PM, "Robert Vesse" <rvesse@yarcdata.com> wrote:
>
>>  Obviously Accumulo is completely schema free but is there any easy way
>> given a table name and optionally one/more scan authorizations to determine
>> what columns are visible to a user?
>>
>>  Or is the only way to do this by scanning the table?
>>
>>  Cheers
>>
>>  Rob
>>
>> Rob Vesse -- YarcData.com -- A Division of Cray Inc
>> Software Engineer, Bay Area
>> m: 925.960.3941  |  o: 925.264.4729 | @: rvesse@yarcdata.com  |  Skype:
>> rvesse
>> 6210 Stoneridge Mall Rd  |  Suite 120  | Pleasanton CA, 94588
>>
>>
>>

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