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Posted to issues@calcite.apache.org by "TANG Wen-hui (Jira)" <ji...@apache.org> on 2020/03/19 06:40:00 UTC
[jira] [Assigned] (CALCITE-3468) Oracle cast to varchar does not
use precision when it should
[ https://issues.apache.org/jira/browse/CALCITE-3468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
TANG Wen-hui reassigned CALCITE-3468:
-------------------------------------
Assignee: TANG Wen-hui
> Oracle cast to varchar does not use precision when it should
> ------------------------------------------------------------
>
> Key: CALCITE-3468
> URL: https://issues.apache.org/jira/browse/CALCITE-3468
> Project: Calcite
> Issue Type: Improvement
> Reporter: Lindsey Meyer
> Assignee: TANG Wen-hui
> Priority: Major
>
> We're trying to cast a node to a varchar with something like this:
> {noformat}
> relBuilder.cast(node, SqlTypeName.VARCHAR)
> {noformat}
> And in Oracle SQL, this generates sql like
> {noformat}
> CAST(node AS VARCHAR){noformat}
> which is incorrect. Oracle can only have VARCHAR types with an explicit precision.
> Looking at the code, it _seems_ like this should work with Oracle, so I'm not really sure what's going on here
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