FilterList.filterKeyValue can return suboptimal ReturnCodes
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Key: HBASE-4410
URL: https://issues.apache.org/jira/browse/HBASE-4410
Project: HBase
Issue Type: Improvement
Components: filters
Reporter: Jonathan Gray
Assignee: Jonathan Gray
Priority: Minor
Fix For: 0.92.0
FilterList.filterKeyValue does not always return the most optimal ReturnCode in
both the AND and OR conditions.
For example, if you have F1 AND F2, F1 returns SKIP. It immediately returns
the SKIP. However, if F2 would have returned NEXT_COL or NEXT_ROW or
SEEK_NEXT_USING_HINT, we would actually be able to return the more optimal
ReturnCode from F2.
For AND conditions, we can always pick the *most restrictive* return code.
For OR conditions, we must always pick the *least restrictive* return code.
This JIRA is to review the FilterList.filterKeyValue() method to try and make
it more optimal and to add a new unit test which verifies the correct behavior.
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