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Posted to notifications@asterixdb.apache.org by "Wenhai (JIRA)" <ji...@apache.org> on 2016/02/14 08:22:18 UTC

[jira] [Resolved] (ASTERIXDB-772) Optimizer should always pick Indexed NL Join over FuzzyJoin when index is available

     [ https://issues.apache.org/jira/browse/ASTERIXDB-772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenhai resolved ASTERIXDB-772.
------------------------------
    Resolution: Incomplete

We can only choose one strategy to enforce the optimization for string based fuzzy join, i.e. either on inverted index or prefix based pruning join. Current status buyes the idea of the later, but we can try to switch the both based on the cardinarlity estimation once the fuzzy join operator is coupled with a select clause on a same join opera.

> Optimizer should always pick Indexed NL Join over FuzzyJoin when index is available
> -----------------------------------------------------------------------------------
>
>                 Key: ASTERIXDB-772
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-772
>             Project: Apache AsterixDB
>          Issue Type: Bug
>          Components: AsterixDB, Similarity
>            Reporter: asterixdb-importer
>            Assignee: Wenhai
>            Priority: Minor
>              Labels: FixedInBranch
>
> Optimizer should always pick Indexed NL Join over FuzzyJoin when index is available



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