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Posted to issues@spark.apache.org by "XiDuo You (Jira)" <ji...@apache.org> on 2022/12/29 03:55:00 UTC
[jira] [Updated] (SPARK-37194) Avoid unnecessary sort in FileFormatWriter if it's not dynamic partition
[ https://issues.apache.org/jira/browse/SPARK-37194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
XiDuo You updated SPARK-37194:
------------------------------
Parent: SPARK-41763
Issue Type: Sub-task (was: Improvement)
> Avoid unnecessary sort in FileFormatWriter if it's not dynamic partition
> ------------------------------------------------------------------------
>
> Key: SPARK-37194
> URL: https://issues.apache.org/jira/browse/SPARK-37194
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: XiDuo You
> Assignee: XiDuo You
> Priority: Major
> Fix For: 3.4.0
>
>
> `FileFormatWriter.write` will sort the partition and bucket column before writing. I think this code path assumed the input `partitionColumns` are dynamic but actually it's not. It now is used by three code path:
> - `FileStreamSink`; it should be always dynamic partition
> - `SaveAsHiveFile`; it followed the assuming that `InsertIntoHiveTable` has removed the static partition and `InsertIntoHiveDirCommand` has no partition
> - `InsertIntoHadoopFsRelationCommand`; it passed `partitionColumns` into `FileFormatWriter.write` without removing static partition because we need it to generate the partition path in `DynamicPartitionDataWriter`
> It shows that the unnecessary sort only affected the `InsertIntoHadoopFsRelationCommand` if we write data with static partition.
>
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