wgtmac commented on code in PR #35758:
URL: https://github.com/apache/arrow/pull/35758#discussion_r1205065841
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cpp/src/parquet/metadata.cc:
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@@ -1462,40 +1462,45 @@ class
ColumnChunkMetaDataBuilder::ColumnChunkMetaDataBuilderImpl {
column_chunk_->meta_data.__set_total_compressed_size(compressed_size);
std::vector<format::Encoding::type> thrift_encodings;
+ std::vector<format::PageEncodingStats> thrift_encoding_stats;
+ // Force Emplace encoding for RL/DL.
+ thrift_encodings.push_back(ToThrift(Encoding::RLE));
+ // Add dictionary page encoding stats
if (has_dictionary) {
-
thrift_encodings.push_back(ToThrift(properties_->dictionary_index_encoding()));
+ // For Parquet V1, Dictionary Data Page and Dictionary Index Page
encodings
+ // is PLAIN_DICTIONARY, but the actual DATA is PLAIN, so force adding
PLAIN.
Review Comment:
Yes, if `EncodingStats` exists it only prints it. Otherwise it prints the
encoding list.
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