[jira] [Resolved] (SPARK-42388) Avoid unnecessary parquet footer reads when no filters in vectorized reader

["Chao Sun (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-42388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chao Sun resolved SPARK-42388.
------------------------------
    Fix Version/s: 3.5.0
       Resolution: Fixed

Issue resolved by pull request 39950
[https://github.com/apache/spark/pull/39950]

> Avoid unnecessary parquet footer reads when no filters in vectorized reader
> ---------------------------------------------------------------------------
>
>                 Key: SPARK-42388
>                 URL: https://issues.apache.org/jira/browse/SPARK-42388
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Mars
>            Assignee: Mars
>            Priority: Major
>             Fix For: 3.5.0
>
>
> Parquet footer is now read twice even if there are no filters requiring pushdown in vectorized parquet reader.
> When the NameNode is under high pressure, it will cost time to read twice. Actually we can avoid this unnecessary parquet footer reads and use footer metadata in {{{}VectorizedParquetRecordReader{}}}.



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