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https://issues.apache.org/jira/browse/SPARK-39794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xinrong Meng updated SPARK-39794:
---------------------------------
Description:
As per
[https://github.com/apache/spark/pull/37173#discussion_r921990449|https://github.com/apache/spark/pull/37173#discussion_r921990449,]
,
we ought to make `DataTypeSingleton` parametric.
Otherwise, we will create a new DataType instance (with parameters in
constructors, e.g. `Varchar`, `DecimalTime`) every time it's called.
> Introduce parametric singleton for DataType
> -------------------------------------------
>
> Key: SPARK-39794
> URL: https://issues.apache.org/jira/browse/SPARK-39794
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 3.4.0
> Reporter: Xinrong Meng
> Priority: Major
>
> As per
> [https://github.com/apache/spark/pull/37173#discussion_r921990449|https://github.com/apache/spark/pull/37173#discussion_r921990449,]
> ,
> we ought to make `DataTypeSingleton` parametric.
> Otherwise, we will create a new DataType instance (with parameters in
> constructors, e.g. `Varchar`, `DecimalTime`) every time it's called.
>
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