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From "Josh Elser (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-2178) ColumnFamilyRangeIterator
Date Sat, 11 Jan 2014 03:01:51 GMT


Josh Elser commented on ACCUMULO-2178:

The ColumnSliceFilter gives you a bounded range for filtering on a ColumnQualifier (See ACCUMULO-1639),
but that's also not going to be the most efficient for many colfams. Would probably be nice
to have both colf and colq support in such an iterator.

> ColumnFamilyRangeIterator
> -------------------------
>                 Key: ACCUMULO-2178
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Corey J. Nolet
>            Priority: Minor
> It would be extremely useful in situations where you would like to specify a range of
rows to iterate and also a range of column families within that range of rows. The current
API requires that you specify a start/end key for each row that you will be scanning in the
range of column families.
> There would be a lot gained from the ability to first seek to the beginning column specified
in the range of columns, return all keys/values inside of that range, and then seek to the
beginning of the range for the following row when the ending column family in the current
row has been reached.

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