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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2019/04/25 17:20:00 UTC
[jira] [Work started] (IMPALA-7331) Add Char codegen support to
helpers
[ https://issues.apache.org/jira/browse/IMPALA-7331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on IMPALA-7331 started by Tim Armstrong.
---------------------------------------------
> Add Char codegen support to helpers
> -----------------------------------
>
> Key: IMPALA-7331
> URL: https://issues.apache.org/jira/browse/IMPALA-7331
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
> Labels: codegen
>
> There are a lot of generic helpers with missing TYPE_CHAR support. We need to add char to those. The tuple layout is identical to TYPE_FIXED_UDA_INTERMEDIATE and the UDF StringVal type is used the same as TYPE_STRING, so mostly this requires using those code paths for CHAR and doing appropriate testing to ensure that it works (the random query generator may help here!).
> E.g.
> https://github.com/apache/impala/blob/4a39e7c/be/src/codegen/codegen-anyval.cc#L58
> https://github.com/apache/impala/blob/4a39e7c29f7b910c9ae0d622b355e9362c17aaec/be/src/runtime/descriptors.cc#L712
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