emkornfield commented on a change in pull request #8366:
URL: https://github.com/apache/arrow/pull/8366#discussion_r501446625
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File path: cpp/src/parquet/arrow/schema.h
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@@ -91,7 +91,6 @@ struct PARQUET_EXPORT SchemaField {
std::shared_ptr<::arrow::Field> field;
// If field has an extension type, an equivalent field with the storage type,
Review comment:
To provide more context
https://github.com/apache/arrow/blob/master/cpp/src/parquet/arrow/reader.cc#L791
GetReader can return a nullptr for a reader, and for struct fields the Types
can change if a specific one is filtered
https://github.com/apache/arrow/blob/master/cpp/src/parquet/arrow/reader.cc#L840
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