Allow ColumnPrefixFilter to support multiple refixes
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Key: HBASE-4612
URL: https://issues.apache.org/jira/browse/HBASE-4612
Project: HBase
Issue Type: Improvement
Components: filters
Affects Versions: 0.90.4
Reporter: Eran Kutner
Priority: Minor
When having a lot of columns grouped by name I've found that it would be very
useful to be able to scan them using multiple prefixes, allowing to fetch
specific groups in one scan, without fetching the entire row. This is
impossible to achieve using a FilterList, so I've added such support to the
existing ColmnPrefixFilter while keeping backward compatibility.
The attached patch is based on 0.90.4, I noticed that the 0.92 branch has a new
method to support instantiating filters using Thrift. I'm not sure how the
serialization works there so I didn't implement that, but the rest of my code
should work in 0.92 as well.
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