[jira] [Updated] (DRILL-1836) Default length for Varchar in cast expressions should be changed

["Parth Chandra (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-1836?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Parth Chandra updated DRILL-1836:
---------------------------------
    Fix Version/s:     (was: 1.0.0)
                   Future

> Default length for Varchar in cast expressions should be changed
> ----------------------------------------------------------------
>
>                 Key: DRILL-1836
>                 URL: https://issues.apache.org/jira/browse/DRILL-1836
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Data Types
>            Reporter: Abhishek Girish
>            Assignee: Mehant Baid
>             Fix For: Future
>
>
> Current behavior:
> Specify length:
> > select cast(t1.colfam1.col1 as varchar(10)) from table1 t1;
> +------------+
> |   EXPR$0   |
> +------------+
> | val1       |
> | val21      |
> | val26      |
> +------------+
> Default length for varchar in a cast expression:
> > select cast(t1.colfam1.col1 as varchar) from table1 t1;
> +------------+
> |   EXPR$0   |
> +------------+
> | v          |
> | v          |
> | v          |
> +------------+
> When the length attribute is not specified with varchar, in a cast expression, Drill treats the default length to be 1. 
> Postgres and SQL Server sets the default length to be 30 in such a scenario. The behavior for Drill must be modified to something similar. 



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