[jira] [Resolved] (SPARK-27956) Allow subqueries as partition filter

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-27956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-27956.
----------------------------------
    Resolution: Duplicate

> Allow subqueries as partition filter
> ------------------------------------
>
>                 Key: SPARK-27956
>                 URL: https://issues.apache.org/jira/browse/SPARK-27956
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Johannes Mayer
>            Priority: Major
>
> Subqueries are not pushed down as partition filters. See following example
>  
> {code:java}
> create table user_mayerjoh.tab (c1 string)
> partitioned by (c2 string)
> stored as parquet;
> {code}
>  
>  
> {code:java}
> explain select * from user_mayerjoh.tab where c2 < 1;{code}
>  
>   == Physical Plan ==
> *(1) FileScan parquet user_mayerjoh.tab[c1#22,c2#23] Batched: true, Format: Parquet, Location: PrunedInMemoryFileIndex[], PartitionCount: 0, *PartitionFilters: [isnotnull(c2#23), (cast(c2#23 as int) < 1)]*, PushedFilters: [], ReadSchema: struct<c1:string>
>  
>  
> {code:java}
> explain select * from user_mayerjoh.tab where c2 < (select 1);{code}
>  
> == Physical Plan ==
>  
> +- *(1) FileScan parquet user_mayerjoh.tab[c1#30,c2#31] Batched: true, Format: Parquet, Location: PrunedInMemoryFileIndex[], PartitionCount: 0, *PartitionFilters: [isnotnull(c2#31)]*, PushedFilters: [], ReadSchema: struct<c1:string>
>  
> Is it possible to first execute the subquery and use the result as partition filter?



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org