You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/02/27 14:21:00 UTC
[jira] [Assigned] (SPARK-38041) DataFilter pushed down with PartitionFilter
[ https://issues.apache.org/jira/browse/SPARK-38041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-38041:
------------------------------------
Assignee: (was: Apache Spark)
> DataFilter pushed down with PartitionFilter
> -------------------------------------------
>
> Key: SPARK-38041
> URL: https://issues.apache.org/jira/browse/SPARK-38041
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Jackey Lee
> Priority: Major
>
> At present, the Filter is divided into DataFilter and PartitionFilter when it is pushed down, but when the Filter removes the PartitionFilter, it means that all Partitions will scan all DataFilter conditions, which may cause full data scan.
> Here is a example.
> before
> {code:java}
> == Physical Plan ==
> *(1) Filter (((a#40L < 10) AND (c#42 = 0)) OR (((a#40L >= 10) AND (c#42 >= 1)) AND (c#42 < 3)))
> +- *(1) ColumnarToRow
> +- BatchScan[a#40L, b#41L, c#42, d#43] ParquetScan DataFilters: [(((a#40L < 10) AND (c#42 = 0)) OR (((a#40L >= 10) AND (c#42 >= 1)) AND (c#42 < 3)))], Format: parquet, Location: InMemoryFileIndex(1 paths)[path, PartitionFilters: [((c#42 = 0) OR ((c#42 >= 1) AND (c#42 < 3)))], PushedAggregation: [], PushedFilters: [Or(LessThan(a,10),GreaterThanOrEqual(a,10))], PushedGroupBy: [], ReadSchema: struct<a:bigint,b:bigint>, PushedFilters: [Or(LessThan(a,10),GreaterThanOrEqual(a,10))], PushedAggregation: [], PushedGroupBy: [] RuntimeFilters: []
> {code}
> after
> {code:java}
> == Physical Plan ==
> *(1) Filter (((a#40L < 10) AND (c#42 = 0)) OR (((a#40L >= 10) AND (c#42 >= 1)) AND (c#42 < 3)))
> +- *(1) ColumnarToRow
> +- BatchScan[a#40L, b#41L, c#42, d#43] ParquetScan DataFilters: [(((a#40L < 10) AND (c#42 = 0)) OR (((a#40L >= 10) AND (c#42 >= 1)) AND (c#42 < 3)))], Format: parquet, Location: InMemoryFileIndex(1 paths)[path, PartitionFilters: [((c#42 = 0) OR ((c#42 >= 1) AND (c#42 < 3)))], PushedAggregation: [], PushedFilters: [Or(And(LessThan(a,10),EqualTo(c,0)),And(And(GreaterThanOrEqual(a,10),GreaterThanOrEqual(c,1)),Le..., PushedGroupBy: [], ReadSchema: struct<a:bigint,b:bigint>, PushedFilters: [Or(And(LessThan(a,10),EqualTo(c,0)),And(And(GreaterThanOrEqual(a,10),GreaterThanOrEqual(c,1)),LessThan(c,3)))], PushedAggregation: [], PushedGroupBy: [] RuntimeFilters: [] {code}
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org