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From "Amit Chavan (Jira)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-11894) Add fetchSize to JDBC cache stores
Date Wed, 11 Sep 2019 16:13:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-11894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16927728#comment-16927728

Amit Chavan commented on IGNITE-11894:

[~slukyanov] Some questions I have
1. Looking at the Ignite core module I see following classes that are jdbc stores CacheJdbcBlobStore
and CacheJdbcPojoStore. Are these the only ones or am I missing more?
2. I see the fetchSize is part of JdbcDialect. Which implementation of the JdbcDilect is used
to access CacheStores? 
3. Are there any examples of UT or docs which shows how the cachestores are being used so
it helps me understand the full end to end workings on the CacheStores.


> Add fetchSize to JDBC cache stores
> ----------------------------------
>                 Key: IGNITE-11894
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11894
>             Project: Ignite
>          Issue Type: Improvement
>          Components: cache
>            Reporter: Stanislav Lukyanov
>            Assignee: Amit Chavan
>            Priority: Minor
>              Labels: newbie
> JDBC's PreparedStatement accepts a fetchSize parameter which defines how many rows will
be loaded from the DB at a time. Currently the only way to change that is by specifying it
in a customer implementation of the JdbcDialect::fetchSize method (and even then it seems
not be be used in some cases).
> Would be good to have a fetchSize property in all of JDBC-based cache stores.

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