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https://issues.apache.org/jira/browse/SPARK-40775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-40775.
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Fix Version/s: 3.4.0
Resolution: Fixed
Issue resolved by pull request 38229
[https://github.com/apache/spark/pull/38229]
> V2 file scans have duplicative descriptions
> -------------------------------------------
>
> Key: SPARK-40775
> URL: https://issues.apache.org/jira/browse/SPARK-40775
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Adam Binford
> Assignee: Adam Binford
> Priority: Major
> Fix For: 3.4.0
>
>
> V2 file scans have duplication in the description. This is because FileScan
> uses the metadata to create the description, but each file type overrides
> metadata and the description adding the same metadata.
> Example from a parquet agg pushdown explain:
> {{ *+- BatchScan parquet file:/...[min(_3)#814, max(_3)#815, min(_1)#816,
> max(_1)#817, count(*)#818L, count(_1)#819L, count(_2)#820L, count(_3)#821L]
> ParquetScan DataFilters: [], Format: parquet, Location: InMemoryFileIndex(1
> paths)[file:/..., PartitionFilters: [], PushedAggregation: [MIN(_3), MAX(_3),
> MIN(_1), MAX(_1), COUNT(*), COUNT(_1), COUNT(_2), COUNT(_3)], PushedFilters:
> [], PushedGroupBy: [], ReadSchema:
> struct<min(_3):int,max(_3):int,min(_1):int,max(_1):int,count(*):bigint,count(_1):bigint,count(_2)...,
> PushedFilters: [], PushedAggregation: [MIN(_3), MAX(_3), MIN(_1), MAX(_1),
> COUNT(*), COUNT(_1), COUNT(_2), COUNT(_3)], PushedGroupBy: [] RuntimeFilters:
> []*}}
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