rluvaton commented on code in PR #9086:
URL: https://github.com/apache/arrow-rs/pull/9086#discussion_r2681921917
##########
arrow-json/src/reader/struct_array.rs:
##########
@@ -205,3 +241,19 @@ fn struct_fields(data_type: &DataType) -> &Fields {
_ => unreachable!(),
}
}
+
+fn build_field_index(fields: &Fields) -> Option<HashMap<String, usize>> {
+ const FIELD_INDEX_LINEAR_THRESHOLD: usize = 16;
Review Comment:
Can you add a comment about that const please, why that number
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