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Posted to issues@beam.apache.org by "Beam JIRA Bot (Jira)" <ji...@apache.org> on 2021/07/06 17:21:01 UTC

[jira] [Updated] (BEAM-12306) Add a native ParquetIO.ReadRows transform

     [ https://issues.apache.org/jira/browse/BEAM-12306?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Beam JIRA Bot updated BEAM-12306:
---------------------------------
    Labels: stale-P2  (was: )

> Add a native ParquetIO.ReadRows transform
> -----------------------------------------
>
>                 Key: BEAM-12306
>                 URL: https://issues.apache.org/jira/browse/BEAM-12306
>             Project: Beam
>          Issue Type: Improvement
>          Components: dsl-sql, io-java-parquet
>            Reporter: Ismaël Mejía
>            Priority: P2
>              Labels: stale-P2
>
> ParquetIO today uses Avro's GenericRecord to materialize reads from Parquet records, this implies an extra conversion from GenericRecord to Beam's Row. We can 'push' this conversion into the source read process by implementing a RecordMaterializer that builds Rows at read time xtending Parquet's [ReadSupport|https://github.com/apache/parquet-mr/blob/master/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/api/ReadSupport.java].



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