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Documentation Index

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DataFile

DataFile represents a physical data file tracked by an Iceberg table. It carries the file path, format, partition data, record counts, file size, and column-level metrics used during planning.

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What it contains

  • File path and format
  • Partition values for the file
  • Record count and file size
  • Column metrics such as null counts and bounds

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Common usage

You most often work with DataFile when you append new files, inspect scan tasks, or rewrite existing files as part of maintenance operations. 
DataFile dataFile = DataFiles.builder(table.spec())
    .withPath("s3://warehouse/db/table/data.parquet")
    .withFileSizeInBytes(10_485_760L)
    .withRecordCount(100_000L)
    .build();