[jira] [Updated] (IGNITE-11515) MVCC: Make sure that multiple cursors are handled properly for JDBC/ODBC

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

     [ https://issues.apache.org/jira/browse/IGNITE-11515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov updated IGNITE-11515:
-------------------------------------
    Ignite Flags:   (was: Docs Required)

> MVCC: Make sure that multiple cursors are handled properly for JDBC/ODBC
> ------------------------------------------------------------------------
>
>                 Key: IGNITE-11515
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11515
>             Project: Ignite
>          Issue Type: Bug
>          Components: jdbc, mvcc, odbc
>            Reporter: Vladimir Ozerov
>            Priority: Major
>
> Consider the following scenario executed from JDBC/ODBC driver:
> 1) Open transaction
> 2) Get a cursor for some large SELECT
> 3) Close transaction
> 4) Overwrite some of not-yet-returned values for the cursor
> 5) Force vacuum
> 6) Read remaining values from the cursor
> Will we get correct result? Most probably no, because we close transaction on commit without consulting to any opened cursors. 
> Possible solutions:
> 1) Extend transaction lifetime until all cursors are closed
> 2) Or close the cursors forcibly and throw proper error message



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