It's an adaptation of a feature table where the weight is the number of occurrences found during ingest. The rowId's are features that are relevant to my queries/row counts (e.g. timespan, geo-space, document partition id, keywords, etc.)
Example: ROWID FAM QUAL VIS VALUE ===== === ==== === ===== White KEYWORD OTHER public 123 14SU GEO MGRS public 456 9223 TIMESPAN EPOC public 7890 DOCPART1 DOCUMENT PARTITION public 1234567 One tablet server will know how many rows exist across the cluster for any ROWID. So I can quickly determine how many rows exist in all my tablet servers with one simple scan. Obviously you have counter them all on ingest and update the edge table. -----Original Message----- From: David Medinets [mailto:[email protected]] Sent: Thursday, June 07, 2012 09:00 To: [email protected] Subject: Re: how to use CountingIterator to count records? Can you describe the Edge Table approach or provide a reference? On Thu, Jun 7, 2012 at 8:55 AM, <[email protected]> wrote: > have moved to the Edge Table approach for a direct look up of occurrences.
