Thomas Mueller created OAK-4681:
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Summary: Automatically convert *all* "or" queries to "union" for
SQL-2
Key: OAK-4681
URL: https://issues.apache.org/jira/browse/OAK-4681
Project: Jackrabbit Oak
Issue Type: New Feature
Reporter: Thomas Mueller
Currently, in OAK-1617, simple SQL-2 queries that contain "or" are converted to
"union" if the cost is lower. However, more complex queries are not converted,
see AndImpl.java, convertToUnion(), "in this case prefer to be conservative and
don't optimize. This could happen when for example: WHERE (a OR b) AND (c OR
d)."
It is implemented for XPath, and works fine there, so I think it is reasonable
to do that for SQL-2 as well for trunk.
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