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parquet: use flatbuffers to store metadata (WIP)#9042

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rok wants to merge 5 commits intoapache:mainfrom
rok:flatbuffers_parquet_metadata
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parquet: use flatbuffers to store metadata (WIP)#9042
rok wants to merge 5 commits intoapache:mainfrom
rok:flatbuffers_parquet_metadata

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@rok
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@rok rok commented Dec 24, 2025

Which issue does this PR close?

Rationale for this change

See

What changes are included in this PR?

Rough draft. WIP. Do not merge. This adds a fbs file, thirft -> flatbuffers, flatbuffers -> thrift converters.

FBS File is from here (from parquet-format)

Are these changes tested?

Not yet. WIP.

Are there any user-facing changes?

This change should provide an option to store the flatbuffers metadata field to field, but otherwise be opaque to the user.

@github-actions github-actions bot added the parquet Changes to the parquet crate label Dec 24, 2025
@alamb
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alamb commented Dec 29, 2025

FYI @etseidl

Thank you @rok

@rok rok force-pushed the flatbuffers_parquet_metadata branch from 090b5ba to e54de63 Compare January 20, 2026 14:48
@rok rok force-pushed the flatbuffers_parquet_metadata branch from d70534b to 757f8c7 Compare February 11, 2026 01:45
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Parquet metadata as flatbuffers

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