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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2019/01/09 04:54:00 UTC
[jira] [Assigned] (SPARK-26577) Add input optimizer when reading
Hive table by SparkSQL
[ https://issues.apache.org/jira/browse/SPARK-26577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-26577:
------------------------------------
Assignee: Apache Spark
> 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
> Assignee: Apache Spark
> Priority: Minor
>
> 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.
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