[jira] [Commented] (CALCITE-6909) Support ClickHouse Dailect with more precise Decimal type

["Yu Xu (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-6909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17938111#comment-17938111 ] 

Yu Xu commented on CALCITE-6909:
--------------------------------

[~mbudiu] This issue had some related to https://issues.apache.org/jira/browse/CALCITE-6900

could you also help to review it when you have a free time? thanks~

> Support ClickHouse Dailect with more precise Decimal type
> ---------------------------------------------------------
>
>                 Key: CALCITE-6909
>                 URL: https://issues.apache.org/jira/browse/CALCITE-6909
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 1.39.0
>            Reporter: Yu Xu
>            Assignee: Yu Xu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.40.0
>
>
> Currently Calcite not support Decimal type in ClickHouse dialect.
> In ClickHouse:
>  * *P - precision. Valid range: [ 1 : 76 ].* 
>  * *S - scale. Valid range: [ 0 : P ].* 
> Depending on P parameter value Decimal(P, S) is a synonym for:
>  * *P from [ 1 : 9 ] - for Decimal32(S)*
>  * *P from [ 10 : 18 ] - for Decimal64(S)*
>  * *P from [ 19 : 38 ] - for Decimal128(S)*
>  * *P from [ 39 : 76 ] - for Decimal256(S)*
>  
> we can refer to doc with: [https://clickhouse.com/docs/sql-reference/data-types/decimal]



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