alamb commented on a change in pull request #1507:
URL: https://github.com/apache/arrow-rs/pull/1507#discussion_r840784430
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File path: arrow/src/array/array_map.rs
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@@ -152,6 +155,44 @@ impl MapArray {
value_offsets,
})
}
+
+ /// Creates map array from provided keys, values and entry_offsets.
+ pub fn new_from_strings<'a>(
+ keys: impl Iterator<Item = &'a str>,
+ values: ArrayData,
Review comment:
> Hmm, if we make it values: &dyn Array, how can we call
StructArray::from or make StructArray from it? We cannot move values.
I guess I was thinking we could use `array.data()` to get the `ArrayData`
needed to construct the `StructArray`
> For example, in the test, the keys is vec!["a", "b", "c", "d", "e", "f",
"g", "h"]; and the offsets are [0, 3, 6, 8]. So it represents [[a, b, c], [d,
e, f], [g, h]].
Ah, sorry, I missed that point.
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