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timsaucer merged 4 commits into from
May 13, 2026
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docs: updating arrays_zip output field naming #22133

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f95bf6a
Add note on updating arrays_zip output field naming
timsaucer May 12, 2026
dd306ac
Update docs/source/library-user-guide/upgrading/54.0.0.md
timsaucer May 12, 2026
32b7256
Apply suggestion from @comphead
timsaucer May 12, 2026
5f35961
Fix indexing, tested
timsaucer May 12, 2026
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14 changes: 14 additions & 0 deletions docs/source/library-user-guide/upgrading/54.0.0.md
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Expand Up @@ -557,6 +557,20 @@ are stored as `Arc<T>` so the map remains cheap to clone.
- Custom `ParquetFileReaderFactory` implementations or other consumers that
read `partitioned_file.extensions` and downcast manually.

### `arrays_zip` struct field names changed

The `arrays_zip` (and its alias `list_zip`) scalar function now names its
output struct fields `"1"`, `"2"`, ..., `"n"` (1-indexed, matching DuckDB and
Spark) instead of `c0`, `c1`, ..., `c{n-1}`.

**Who is affected:**

- Queries or downstream code that references the output struct fields by name
(e.g. `arrays_zip(a, b)[1]['c0']`). Update field accessors to `'1'`, `'2'`,
etc. (e.g. `arrays_zip(a, b)[1]['1']`).

See [PR #20886](https://github.com/apache/datafusion/pull/20886) for details.

### `Box<C>` and `Arc<C>` `TreeNodeContainer` impls now require `C: Default`

The generic `TreeNodeContainer` implementations for `Box<C>` and `Arc<C>` now
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