[core] Add field statistics in IcebergDataFileMeta - #4090
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This was referenced Aug 10, 2026
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Purpose
This PR adds field statistics in
IcebergDataFileMeta, so Iceberg can filter files when reading our metadata. We can also use statistics to test if the result ofIcebergConversionscan be correctly recognized by Iceberg.Tests
Unit tests.
API and Format
No format changes.
Documentation
Document will be added later.