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| From | Ryan Rawson <ryano...@gmail.com> |
| Subject | Re: scanner on a given column: whole table scan or just the rows that have values |
| Date | Wed, 10 Jun 2009 02:35:31 GMT |
Without the use of indexes, there is no easy way to get the info without touching every row. So yes you'll be scanning every row. But hbase has good bulk scan perf. On Jun 9, 2009 7:24 PM, "Ric Wang" <wqt.work@gmail.com> wrote: How does the scanner know how to get ONLY the "relevant" rows, without a whole table scan? Thanks! Ric On Tue, Jun 9, 2009 at 4:31 PM, Naveen Koorakula <naveenk@gmail.com> wrote: > The scanner only s... -- Ric Wang wqt.work@gmail.com | |
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