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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-4031) SQL: Optimize Date\Time\Timestamp function arguments conversion.
Date Tue, 22 Aug 2017 10:10:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-4031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-4031:
------------------------------------
    Fix Version/s:     (was: 2.2)

> SQL: Optimize Date\Time\Timestamp function arguments conversion.
> ----------------------------------------------------------------
>
>                 Key: IGNITE-4031
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4031
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>    Affects Versions: 1.6
>            Reporter: Andrew Mashenkov
>              Labels: performance
>
> When sql function with Date\Time\Timestamp arguments is used, H2 internals convert these
objects using java.util.Calendar before pass them as arguments.
> In current H2 version we use: DateTimeUtils holds cache java.util.Calendar instance in
static field and synchronize every operation on it.
> If its possible, we need to have workaround to use java.util.Calendar more effectively
as it done for timestamp fields. See IgniteH2Indexing.wrap() method.
> Startpoint: GridSQLQueryParser.FUNC_ALIAS



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