emkornfield commented on code in PR #14964:
URL: https://github.com/apache/arrow/pull/14964#discussion_r1083084578
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cpp/src/parquet/file_reader.cc:
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@@ -302,6 +303,17 @@ class SerializedFile : public ParquetFileReader::Contents {
std::shared_ptr<FileMetaData> metadata() const override { return
file_metadata_; }
+ std::shared_ptr<PageIndexReader> GetPageIndexReader() override {
+ if (!file_metadata_) {
+ throw ParquetException("Cannot get PageIndexReader as file metadata is
not ready");
Review Comment:
nit: can we instruct the api caller what went wrong here (i.e. should they
call a certain method?)
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