Hi Daniel, I'm almost done with this for HIVE-1226; the remaining step I need to finish is to get the filter passed down during getSplits, since the HBase getSplits implementation takes care of figuring out which regions contain the row in question.
JVS On Sep 11, 2010, at 7:00 PM, Daniel Einspanjer wrote: > I was trying to spend a little time this weekend catching up with the current > state of HBase integration for Hive. One thing that I haven't seen mentioned > is how exactly Hive scans an HBase table during a SELECT. > > Does Hive have logic that allows it to intelligently scan only the > participating regions during a SELECT query that uses the rowkey? If not, I > recently wrote some code that allows a MapReduce job to effectively select > the regions based on a list of start/end rowkey ranges. If this might be > useful to the Hive integration, I could create a Jira and take a look at > trying to set up a patch. > > Daniel Einspanjer > Metrics Architect > Mozilla Corporation
