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https://issues.apache.org/jira/browse/SPARK-26577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Deegue updated SPARK-26577:
---------------------------
    Description: 
When using SparkSQL, for example the ThriftServer, if we set

`spark.sql.hive.inputFormat.optimizer.enabled=true`

we can optimize the InputFormat to CombineTextInputFormat automatically if it's 
TextInputFormat before. And we can also change the max/min size of input splits 
by setting, for example

`mapreduce.input.fileinputformat.split.maxsize=268435456`

`mapreduce.input.fileinputformat.split.minsize=134217728`

 

Otherwise, we have to modify Hive Configs and structure of tables.

  was:
When using SparkSQL, for example the ThriftServer, if we set

`spark.sql.hive.fileInputFormat.enabled=true`

we can optimize the InputFormat to CombineTextInputFormat automatically if it's 
TextInputFormat before. And we can also change the max/min size of input splits 
by setting, for example

`spark.sql.hive.fileInputFormat.split.maxsize=268435456`

`spark.sql.hive.fileInputFormat.split.minsize=134217728`

 

Otherwise, we have to modify Hive Configs and structure of tables.


> Add input optimizer when reading Hive table by SparkSQL
> -------------------------------------------------------
>
>                 Key: SPARK-26577
>                 URL: https://issues.apache.org/jira/browse/SPARK-26577
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.1
>            Reporter: Deegue
>            Priority: Minor
>
> When using SparkSQL, for example the ThriftServer, if we set
> `spark.sql.hive.inputFormat.optimizer.enabled=true`
> we can optimize the InputFormat to CombineTextInputFormat automatically if 
> it's TextInputFormat before. And we can also change the max/min size of input 
> splits by setting, for example
> `mapreduce.input.fileinputformat.split.maxsize=268435456`
> `mapreduce.input.fileinputformat.split.minsize=134217728`
>  
> Otherwise, we have to modify Hive Configs and structure of tables.



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