liamzwbao commented on code in PR #8803:
URL: https://github.com/apache/arrow-rs/pull/8803#discussion_r2511600531
##########
arrow-array/src/array/list_array.rs:
##########
@@ -152,8 +152,8 @@ impl OffsetSizeTrait for i64 {
/// │ [D] │ │ (4,5) │ │ 1 │ │ 4 │ │ │ 0 │ │ ? │ │ 3
│
/// └─────────────┘ └───────┘ │ └───┘ ├───┤ ├───┤ ├───┤
/// │ 5 │ │ │ 1 │ │ D │ │ 4
│
-/// │ └───┘ ├───┤ ├───┤
-/// │ │ 0 │ │ ? │ │ 5
│
+/// │ └───┘ ╠═══╣ ╠═══╣
+/// │ ║ 0 ║ ║ ? ║ │ 5
│
Review Comment:
For slice(1, 3), the last list in the slice is list_array[3], which is [D].
However, the diagram also shows data coming from list_array[4][0] (the first
element of [NULL, F]), i.e. a Null at Values[5]. That element is outside the
sliced offsets range so I marked it as unused.
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