serramatutu commented on code in PR #758:
URL: https://github.com/apache/arrow-go/pull/758#discussion_r3078666313
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arrow/array/dictionary.go:
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@@ -990,6 +1030,26 @@ type dictBuilder[T arrow.ValueType] struct {
dictionaryBuilder
}
+func (b *dictBuilder[T]) UnsafeAppend(v T) error {
Review Comment:
NOTE: Since `Append()` returns `error`, I had done the same thing for and
`UnsafeAppend()`. However, I noticed the only thing that could return an error
from `appendValue`, `appendBytes` or `unsafeAppendValue` is
`b.memoTable.GetOrInsert(val)` since `val` is `interface{}` and the type ID
could be wrong.
Since `v` is typed explicitly with `T` in `Append()`/`UnsafeAppend()`, it is
safe to assume there should never be any error, unless there is an
implementation bug, in which case a panic is better.
In the latest commit, I changed `UnsafeAppend()` to be infallible, and added
`TODO` comments for all the other `Append()`, as that would be a breaking
change to the public API.
What do you think?
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