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https://issues.apache.org/jira/browse/HIVE-18573?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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slim bouguerra updated HIVE-18573:
----------------------------------
    Description: 
Currently, Hive is mostly using user-defined black box sql operators during 
Query planning. It will be more beneficial to use proper calcite operators, 
this is to prepare the ground for pushing complex expressions to Druid-calcite 
adapter.

 

 

  was:
Currently, Hive is mostly using user-defined black box sql operators during 
Query planning. It will be more beneficial to use proper calcite operators.

Also, Use a single name for Extract operator instead of a different name for 
every Unit,  

Same for Floor function. This will allow unifying the treatment per operator.

 


> Use proper Calcite operator instead of UDFs
> -------------------------------------------
>
>                 Key: HIVE-18573
>                 URL: https://issues.apache.org/jira/browse/HIVE-18573
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: slim bouguerra
>            Priority: Major
>         Attachments: HIVE-18573.2.patch, HIVE-18573.3.patch, 
> HIVE-18573.4.patch, HIVE-18573.5.patch, HIVE-18573.6.patch, 
> HIVE-18573.7.patch, HIVE-18573.patch
>
>
> Currently, Hive is mostly using user-defined black box sql operators during 
> Query planning. It will be more beneficial to use proper calcite operators, 
> this is to prepare the ground for pushing complex expressions to 
> Druid-calcite adapter.
>  
>  



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