fix: deprecate data_type_and_nullable and simplify API usage #18869
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Which issue does this PR close?
What changes are included in this PR?
Instead of using
data_type_and_nullable, this patch removes the indirection and callsto_fielddirectly. The deprecated helper added no additional logic, so the PR encourages callers to use the field returned by to_field to access both the data type and the nullability.Are these changes tested?
Yes