Provide fast doesExist() method to avoid get() != null calls
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Key: HBASE-1482
URL: https://issues.apache.org/jira/browse/HBASE-1482
Project: Hadoop HBase
Issue Type: Improvement
Affects Versions: 0.19.3
Reporter: Lars George
Fix For: 0.21.0
Currently one has to use get() != null checks to see if a specific column has a
value for any given row. But this involves the whole load and transfer stack to
shift the data to the client just for it to drop the content. Better would be a
server side check and only returning the boolean back to the client, especially
if the checked cell is containing MB's of data.
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