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From Stack <st...@duboce.net>
Subject Re: Would ROWCOL Bloom filter help in Scan
Date Tue, 01 Dec 2015 06:55:08 GMT
On Mon, Nov 30, 2015 at 9:56 AM, Jerry He <jerryjch@gmail.com> wrote:

> Hi, experts
> HBASE supports ROWCOL bloom filter. ROW+COL would be the bloom key.
> In most of the documentations, it says only GET would benefit. For
> multi-column as well.
> If I do scan with StartRow and EndRow, and also specify columns.
> Would ROWCOL bloom filter provide any benefit in anyway?
If I understand your question properly, the answer is no. While we might
have a set of columns to check in the bloom, we'd not know the set of rows
between start and end row and so would not be able to formulate a query
against the ROW+COL bloom filter.


> Thank you.
> Jerry

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