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Posted to issues@ignite.apache.org by "Andrey Mashenkov (Jira)" <ji...@apache.org> on 2022/11/01 22:51:00 UTC

[jira] [Updated] (IGNITE-18055) Sql. Support index scans with NULL conditions.

     [ https://issues.apache.org/jira/browse/IGNITE-18055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrey Mashenkov updated IGNITE-18055:
--------------------------------------
    Description: 
Query {{SELECT * FROM T1 WHERE val is null}} look fine, but next cases has to be fixed.

* {{SELECT * FROM T1 WHERE val is not null}} - returns nothing.
* {{SELECT * FROM T1 WHERE (val <= 5) or (val is null)}} - returns duplicate rows.

Startpoint is ItSecondaryIndexTest.

> Sql. Support index scans with NULL conditions.
> ----------------------------------------------
>
>                 Key: IGNITE-18055
>                 URL: https://issues.apache.org/jira/browse/IGNITE-18055
>             Project: Ignite
>          Issue Type: Improvement
>          Components: sql
>            Reporter: Andrey Mashenkov
>            Priority: Major
>              Labels: ignite-3
>
> Query {{SELECT * FROM T1 WHERE val is null}} look fine, but next cases has to be fixed.
> * {{SELECT * FROM T1 WHERE val is not null}} - returns nothing.
> * {{SELECT * FROM T1 WHERE (val <= 5) or (val is null)}} - returns duplicate rows.
> Startpoint is ItSecondaryIndexTest.



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