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From "Taras Ledkov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-11314) JDBC Thin: add transaction-scoped flag to JdbcHandler's responses.
Date Wed, 17 Apr 2019 15:16:00 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-11314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16820181#comment-16820181
] 

Taras Ledkov commented on IGNITE-11314:
---------------------------------------

[~alapin], the patch is OK with me. Please review my minor changes.

> JDBC Thin: add transaction-scoped flag to JdbcHandler's responses.
> ------------------------------------------------------------------
>
>                 Key: IGNITE-11314
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11314
>             Project: Ignite
>          Issue Type: Task
>          Components: jdbc
>            Reporter: Alexander Lapin
>            Assignee: Alexander Lapin
>            Priority: Major
>              Labels: iep-23
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Within the context of best effort affinity, and particular, multi-connections, it's necessary
to use "sticky" connections in case of  "next page" requests, transactions, streaming and
copy.
> In order to implement transaction-based-sticky use case we need to know whether we are
in transnational scope or not. So JdbcRequestHandler ought to retrieve query execution plan,
analyse whether transaction exists and propagate corresponding flag to the client.



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