[jira] [Work started] (IMPALA-7833) Audit and fix other string builtins for long string handling

["Akos Kovacs (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-7833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on IMPALA-7833 started by Akos Kovacs.
-------------------------------------------
> Audit and fix other string builtins for long string handling
> ------------------------------------------------------------
>
>                 Key: IMPALA-7833
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7833
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 2.11.0, Impala 3.0, Impala 3.1.0
>            Reporter: Tim Armstrong
>            Assignee: Akos Kovacs
>            Priority: Major
>              Labels: crash, ramp-up
>
> Following on from IMPALA-7822, there are some other string builtins that seem to follow the same pattern of having a string size overflow an int passed into the StringVal constructor. I think in some cases we get lucky and it works out, but others it seems possible to crash given the right input values. 
> Here are some examples of cases where we can hit such bugs:
> {noformat}
> select lpad('foo', 17179869184 , ' ');
> select rpad('foo', 17179869184 , ' ');
> select space(17179869184 );
> {noformat}



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