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From "Alexander Paschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-4573) Optimize H2 comparisons w/constant
Date Thu, 19 Jan 2017 16:30:26 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-4573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15830208#comment-15830208
] 

Alexander Paschenko commented on IGNITE-4573:
---------------------------------------------

Investigated H2 code and discovered redundant constant conversions. Working on a fix to contribute
to H2.

> Optimize H2 comparisons w/constant
> ----------------------------------
>
>                 Key: IGNITE-4573
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4573
>             Project: Ignite
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Alexander Paschenko
>            Assignee: Alexander Paschenko
>             Fix For: 1.9
>
>
> Currently H2 performs constant conversions for each row - say, for {{WHERE person.id
= '1'}} the {{'1'}} will be converted to {{int}} for each row which is clearly redundant.



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