candiduslynx commented on issue #41284:
URL: https://github.com/apache/arrow/issues/41284#issuecomment-2096730780
> ```go
> newListData := array.NewData(listArr.DataType(), listArr.Len(),
listArr.Data().Buffers(), []arrow.ArrayData{newValues.Data()}, listArr.NullN(),
/* offset=*/0)
> defer newListData.Release()
>
> newListArr := array.NewListData(newListData)
> ```
@zeroshade I think there's one vital thing to actually address here: offset
should also be used (as the passed in record/array may be sliced), but not for
struct arrays (they are special & I don't know why).
I actually implemented the bulk of the conversion in our filetypes package:
https://github.com/cloudquery/filetypes/blob/7fe7b10f029d7a853bf118eed6cf156eff375807/parquet/read.go#L77-L102
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