[jira] [Commented] (CALCITE-7456) Improve the conversion of try_cast function with mssql

["Julian Hyde (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-7456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18069699#comment-18069699 ] 

Julian Hyde commented on CALCITE-7456:
--------------------------------------

Can you make the summary look more like other summaries for cases that add support for a function to a back-end dialect? Also remember function names should be upper-case.

> Improve the conversion of try_cast function with mssql
> ------------------------------------------------------
>
>                 Key: CALCITE-7456
>                 URL: https://issues.apache.org/jira/browse/CALCITE-7456
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 1.41.0
>            Reporter: terran2010
>            Priority: Major
>              Labels: pull-request-available
>
> When we execute the following SQL:
> {code:java}
> select TRY_CAST(gross_weight as bigint) as gross_weight_value from product {code}
> Cacltie will output:
> {code:java}
> SELECT SAFE_CAST([gross_weight] AS BIGINT) AS [GROSS_WEIGHT_VALUE] FROM [foodmart].[product] {code}
> We can find the following document, msSQL does not have the SAFE-CAST function, we can consider optimizing it
> https://learn.microsoft.com/en-us/sql/t-sql/functions/try-cast-transact-sql?view=sql-server-ver17
>  



--
This message was sent by Atlassian Jira
(v8.20.10#820010)