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[Parquet] Variant Null type typed_value field is supported #1205

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#1243
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[Parquet] Variant Null type typed_value field is supported#1205
#1243
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dgvj-work
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Type: bugSomething isn't working

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@sdf-jkl
sdf-jkl
opened on Aug 13, 2026

Describe the bug, including details regarding any error messages, version, and platform.

Tbd - apache/arrow#50810

Per the discussion here - apache/arrow#50622 - Variant shouldn't support Null type typed_value array.

Nulls meaning in the shredding spec:
https://github.com/apache/parquet-format/blob/2076361bb64e2de9ca6a8d06eda025a6fa4e9df6/VariantShredding.md?plain=1#L68-L73

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Parquet

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  1. sdf-jkl
    added
    Type: bugSomething isn't working
    on Aug 13, 2026

  2. dgvj-work commented on Aug 28, 2026

    @dgvj-work
    dgvj-work
    on Aug 28, 2026
    Contributor

    I'll take this as part of the Variant/Parquet spec-alignment cluster (#1202–#1205).

  3. dgvj-work commented on Aug 28, 2026

    @dgvj-work
    dgvj-work
    on Aug 28, 2026
    Contributor

    take

  4. dgvj-work commented on Aug 28, 2026

    @dgvj-work
    dgvj-work
    on Aug 28, 2026
    Contributor

    Opened #1243

  5. github-actions
    assigned
    dgvj-work
    on Aug 28, 2026
  6. zeroshade
    closed this as completedin #1243on Sep 2, 2026
  7. zeroshade
    added a commit that references this issue on Sep 2, 2026

    fix(arrow/extensions): reject Null Variant typed_value (#1243)

    d24b83e
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