cashmand opened a new pull request, #43911:
URL: https://github.com/apache/spark/pull/43911
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### What changes were proposed in this pull request?
Add a small fix for #43707. Since Variant is represented in columnar form as
a struct, it must use `StructNullableTypeConverter` so that nulls are set
properly in child column vectors.
### Why are the changes needed?
Fixes a potential when setting nulls in Variant columns.
### Does this PR introduce _any_ user-facing change?
No, Variant is not released yet.
### How was this patch tested?
I'm not sure if there's any easy way to test this, since Variant is still a
work in progress, and we don't have full columnar support.
### Was this patch authored or co-authored using generative AI tooling?
No.
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