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https://issues.apache.org/jira/browse/HIVE-21264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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BELUGA BEHR updated HIVE-21264:
-------------------------------
    Description: 
The {{CharTypeInfo}} stores the type name of the data type (char/varchar) and 
the length (1-255).  {{CharTypeInfo}} objects are often getting cached once 
they are created.

The {{hashcode()}} and {{equals()}} of its sub-classes varchar and char are 
inconsistent in this regard.

* Make hashcode and equals consistent (and fast)
* Simplify the {{getQualifiedName}} implementation and reduce the scope to 
protected
* Other related nits

  was:
The {{CharTypeInfo}} stores the type name of the data type (char/varchar) and 
the length (1-255).  {{CharTypeInfo}} objects are often getting cached once 
they are created.

The {hashcode()} and {{equals()}} of its sub-classes varchar and char are 
inconsistent in this regard.

* Make hashcode and equals consistent (and fast)
* Simplify the {{getQualifiedName}} implementation and reduce the scope to 
protected
* Other related nits


> Improvements Around CharTypeInfo
> --------------------------------
>
>                 Key: HIVE-21264
>                 URL: https://issues.apache.org/jira/browse/HIVE-21264
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 4.0.0, 3.2.0
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Minor
>         Attachments: HIVE-21264.1.patch
>
>
> The {{CharTypeInfo}} stores the type name of the data type (char/varchar) and 
> the length (1-255).  {{CharTypeInfo}} objects are often getting cached once 
> they are created.
> The {{hashcode()}} and {{equals()}} of its sub-classes varchar and char are 
> inconsistent in this regard.
> * Make hashcode and equals consistent (and fast)
> * Simplify the {{getQualifiedName}} implementation and reduce the scope to 
> protected
> * Other related nits



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