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HBase >> mail # user >> How HBase perform per-column scan?

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Re: How HBase perform per-column scan?
When you say column, you mean one column family (CF) or column qualifier?
If this is one column qualifier and there are other qualifiers in the same


On Sun, Mar 10, 2013 at 12:41 AM, yun peng <[EMAIL PROTECTED]> wrote:

> Hi, All,
> I want to find all existing values for a given column in a HBase, and would
> that result in a full-table scan in HBase? For example, given a column C,
> the table is of very large number of rows, from which few rows (say only 1
> row) have non-empty values for column C. Would HBase still ues a full table
> scan to find this row? Or HBase has any optimization work for this kind of
> query?
> Thanks...
> Regards
> Yun