[jira] [Commented] (IGNITE-5934) Integrate mvcc support in sql query protocol

["Vladimir Ozerov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-5934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16251056#comment-16251056 ] 

Vladimir Ozerov commented on IGNITE-5934:
-----------------------------------------

MVCC support for queries is mostly ready. However, several things need to be addressed:
1) Perform cleanup in {{MvccQueryTracker}}, so that all TODOs has relevant tickets.
2) {{GridReduceQueryExecutor.query}} - need to make sure that queries without caches (e.g. {{SELECT 1}}) works correctly. This also can be done in separate ticket.

> Integrate mvcc support in sql query protocol
> --------------------------------------------
>
>                 Key: IGNITE-5934
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5934
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>            Reporter: Semen Boikov
>            Assignee: Vladimir Ozerov
>             Fix For: 2.4
>
>
> Need integrate mvcc support in sql query protocol:
> - request current ID and list of active txs from coordinator
> - pass this info in sql requests and in sql queries
> - notify coordinator after query completed



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