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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-4086) Binary objects: Do not use BinaryField when comparing objects with the same schema.
Date Fri, 14 Oct 2016 13:32:20 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-4086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-4086:
------------------------------------
    Summary: Binary objects: Do not use BinaryField when comparing objects with the same schema.
 (was: Binary objets: Do not use BinaryField when comparing objects with the same schema.)

> Binary objects: Do not use BinaryField when comparing objects with the same schema.
> -----------------------------------------------------------------------------------
>
>                 Key: IGNITE-4086
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4086
>             Project: Ignite
>          Issue Type: Task
>          Components: binary
>    Affects Versions: 1.7
>            Reporter: Vladimir Ozerov
>              Labels: performance
>             Fix For: 1.8
>
>
> Most often we perform comparisons of objects with the same schema. When it is so, there
is no need to compare them field-by-field. Instead, we should do the following:
> 1) Skip header
> 2) Skip footer
> 3) Compare byte-by-byte everything in between.
> Please ensure that byte-by-byte comparison is implemented efficiently. E.g. that we actually
compare bigger chunks (e.g. 8 bytes at once).



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