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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2013/05/15 17:15:16 UTC

[jira] [Created] (OAK-824) Query engine: automatic expansion of "x=1 or x=2" to "(x is not null) and (x=1 or x=2)"

Thomas Mueller created OAK-824:
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             Summary: Query engine: automatic expansion of "x=1 or x=2" to "(x is not null) and (x=1 or x=2)"
                 Key: OAK-824
                 URL: https://issues.apache.org/jira/browse/OAK-824
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core, query
            Reporter: Thomas Mueller
            Assignee: Thomas Mueller


Queries with conditions of the type "x=1 or x=2" currently don't use an index. An index (on property existance) could be used if the condition is automatically expanded to "(x is not null) and (x=1 or x=2)". This should be relatively easy to implement in the query engine (I hope).

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