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Posted to issues@ignite.apache.org by "Taras Ledkov (Jira)" <ji...@apache.org> on 2020/11/17 13:52:00 UTC

[jira] [Assigned] (IGNITE-9182) Propagate lazy flag to synthetic SELECT used by first step of DELETE

     [ https://issues.apache.org/jira/browse/IGNITE-9182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Taras Ledkov reassigned IGNITE-9182:
------------------------------------

    Assignee: Taras Ledkov

> Propagate lazy flag to synthetic SELECT used by first step of DELETE
> --------------------------------------------------------------------
>
>                 Key: IGNITE-9182
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9182
>             Project: Ignite
>          Issue Type: Improvement
>          Components: sql
>            Reporter: Stanislav Lukyanov
>            Assignee: Taras Ledkov
>            Priority: Major
>              Labels: sql-stability
>             Fix For: 2.10
>
>
> When DELETE is executed it first executed SELECT with the same WHERE, and then deletes all results via an invoke(). If a large number of entries is to be deleted, it may lead to OOM.
> The task is to allow to perform the SELECT with the parent query's LAZY flag.



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