Amit Jain created OAK-2944:
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Summary: Support merge iterator for union order by queries
Key: OAK-2944
URL: https://issues.apache.org/jira/browse/OAK-2944
Project: Jackrabbit Oak
Issue Type: Sub-task
Components: query
Reporter: Amit Jain
Assignee: Amit Jain
Currently, any order by union queries (including optimized OR XPATH) scan a
much larger set when returning the results even when the individual queries are
sorted by the index itself.
We should have a merge iterator which would scan a much smaller set as the
individual queries would be sorted.
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