apache / apache/parquet-java

ParquetRecordReader support building ParquetFileReader using incoming Footer

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Component: Parquet Priority: Major Type: enhancement
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Java
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Description

SPARK-33449 discusses adding file meta cache mechanism for Spark SQL to reduce data reading and speed up query.

For the scenarios that need to use ParquetRecordReader, we hope to add an interface to support passing an existing footer to ParquetRecordReader and use this instance to build ParquetFileReader.

**Reporter**: [Yang Jie](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=LuciferYang) / @LuciferYang

**Note**: *This issue was originally created as [PARQUET-1965](https://issues.apache.org/jira/browse/PARQUET-1965). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*

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