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HBase >> mail # user >> How HBase perform per-column scan?


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How HBase perform per-column scan?
Hi, All,
I want to find all existing values for a given column in a HBase, and would
that result in a full-table scan in HBase? For example, given a column C,
the table is of very large number of rows, from which few rows (say only 1
row) have non-empty values for column C. Would HBase still ues a full table
scan to find this row? Or HBase has any optimization work for this kind of
query?
Thanks...
Regards
Yun
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB