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Posted to oak-issues@jackrabbit.apache.org by "Thomas Mueller (JIRA)" <ji...@apache.org> on 2015/05/29 16:19:18 UTC

[jira] [Assigned] (OAK-1871) Support multi-column property indexes

     [ https://issues.apache.org/jira/browse/OAK-1871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Mueller reassigned OAK-1871:
-----------------------------------

    Assignee: Thomas Mueller

> Support multi-column property indexes
> -------------------------------------
>
>                 Key: OAK-1871
>                 URL: https://issues.apache.org/jira/browse/OAK-1871
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>            Priority: Minor
>             Fix For: 1.4
>
>
> Currently, all property indexes are single-column. To speed up some use cases, the property index should support multiple columns. Example use case: 
> Property "size" with low cardinality (low number of distinct values, for example "S", "M", "L", "XL"). Property "color" with low number of cardinality ("white", "black", "red",...). The query condition is "where size = 'L' and color = 'white'". The number of matching nodes is small.



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