[jira] [Updated] (SPARK-29262) DataFrameWriter insertIntoPartition function

["Dongjoon Hyun (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-29262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dongjoon Hyun updated SPARK-29262:
----------------------------------
    Affects Version/s:     (was: 3.0.0)
                       3.1.0

> DataFrameWriter insertIntoPartition function
> --------------------------------------------
>
>                 Key: SPARK-29262
>                 URL: https://issues.apache.org/jira/browse/SPARK-29262
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: feiwang
>            Priority: Minor
>
> InsertIntoPartition is a useful function.
> For SQL statement, relative syntax.
> {code:java}
> insert overwrite table tbl_a partition(p1=v1,p2=v2,...,pn=vn) select ...
> {code}
> In the example above, I specify all the partition key value, so it must be a static partition overwrite, regardless whether enable dynamic partition overwrite.
> If we enable dynamic partition overwrite. For the sql below, it will only overwrite relative partition not whole table.
> If we disable dynamic partition overwrite, it will overwrite whole table.
> {code:java}
> insert overwrite table tbl_a partition(p1,p2,...,pn) select ...
> {code}
> As far as now, dataFrame does not support overwrite a specific partition.
> It means that, for a partitioned table, if we insert overwrite  by using dataFrame with dynamic partition overwrite disabled,  it will always overwrite whole table.
> So, we should support insertIntoPartition for dataFrameWriter.



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