[jira] [Commented] (CALCITE-1444) Add support for CONVERT scalar function

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

    [ https://issues.apache.org/jira/browse/CALCITE-1444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15583367#comment-15583367 ] 

Julian Hyde commented on CALCITE-1444:
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This would be great.

Note that the SQL standard has a {{CONVERT}} function (see CALCITE-111) which has  a different purpose (it relates to character sets). Since it is specified without the {{ {fn ...} }} syntax, they should be able to coexist.

> Add support for CONVERT scalar function
> ---------------------------------------
>
>                 Key: CALCITE-1444
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1444
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>            Reporter: Laurent Goujon
>            Assignee: Julian Hyde
>
> Both ODBC and JDBC spec mention a {{CONVERT}} scalar function, which is the equivalent of the {{CAST}} function.
> In order for JDBC and ODBC drivers to expose support for this function, calcite should support parsing it, and converting it into a {{CAST}} expression (currently, it doesn't unlike some other scalar functions).



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