HuaHuaY commented on code in PR #49125:
URL: https://github.com/apache/arrow/pull/49125#discussion_r2785553439
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cpp/src/parquet/arrow/schema.cc:
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@@ -620,7 +621,8 @@ Status MapToSchemaField(const GroupNode& group, LevelInfo
current_levels,
if (group.field_count() != 1) {
return Status::Invalid("MAP-annotated groups must have a single child.");
}
- if (group.is_repeated()) {
+ if (group.is_repeated() &&
Review Comment:
I have added `MAP-annotated groups cannot be repeated unless in a legacy
two-level LIST-annotated group.` because I think the following sentence is an
inference of official document.
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