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https://issues.apache.org/jira/browse/IGNITE-21673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maksim Zhuravkov updated IGNITE-21673:
--------------------------------------
    Description: 
SQL standard does not allow to include the same column multiple times in column 
list of a primary key. 
AI-3 accepts multiple columns with the same name, because it deduplicates them. 
Let's update DDL command to catalog command conversion to be consistent with 
the standard.

  was:
SQL standard does not allows to include the same column multiple times in 
column list of a primary key. 
AI-3 accepts multiple columns, because it it deduplicates them. Let's update 
DDL command to catalog command convertion to be consistent with the standard.


> Sql. Do not allow duplicate column names in unique column list of a primary 
> key constraint. 
> --------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-21673
>                 URL: https://issues.apache.org/jira/browse/IGNITE-21673
>             Project: Ignite
>          Issue Type: Improvement
>          Components: sql
>            Reporter: Maksim Zhuravkov
>            Priority: Minor
>              Labels: ignite-3
>
> SQL standard does not allow to include the same column multiple times in 
> column list of a primary key. 
> AI-3 accepts multiple columns with the same name, because it deduplicates 
> them. Let's update DDL command to catalog command conversion to be consistent 
> with the standard.



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