[jira] [Assigned] (SPARK-38094) Parquet: enable matching schema columns by field id

["Apache Spark (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-38094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-38094:
------------------------------------

    Assignee:     (was: Apache Spark)

> Parquet: enable matching schema columns by field id
> ---------------------------------------------------
>
>                 Key: SPARK-38094
>                 URL: https://issues.apache.org/jira/browse/SPARK-38094
>             Project: Spark
>          Issue Type: New Feature
>          Components: Spark Core
>    Affects Versions: 3.3
>            Reporter: Jackie Zhang
>            Priority: Major
>
> Field Id is a native field in the Parquet schema ([https://github.com/apache/parquet-format/blob/master/src/main/thrift/parquet.thrift#L398])
> After this PR, when the requested schema has field IDs, Parquet readers will first use the field ID to determine which Parquet columns to read, before falling back to using column names as before. It enables matching columns by field id for supported DWs like iceberg and Delta.
> This PR supports:
>  * OSS vectorized reader
> does not support:
>  * Parquet-mr reader due to lack of field id support (needs a follow up ticket)



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