Thomas Mueller created OAK-12221:
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Summary: Cost estimation should be lower if more conditions are
indexed
Key: OAK-12221
URL: https://issues.apache.org/jira/browse/OAK-12221
Project: Jackrabbit Oak
Issue Type: Improvement
Components: query
Reporter: Thomas Mueller
Currently, the cost estimation of the Lucene and Elasticsearch indexes only
tracks the minimum across all properties. The number of indexed properties is
not taken into account.
What should happen is: the more indexed conditions are added to a query, the
lower the expected cost should be. Eg. a query with "color = 'red' and id = 1"
should have a lower expected cost than a query with just "id = 1" or just
"color = 'red'".
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