pitrou commented on code in PR #14556:
URL: https://github.com/apache/arrow/pull/14556#discussion_r1014839927
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cpp/src/parquet/printer.cc:
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@@ -39,6 +39,25 @@ namespace parquet {
class ColumnReader;
+namespace {
+
+void PrintPageEncodingStats(std::ostream& stream,
+ const std::vector<PageEncodingStats>&
encoding_stats) {
+ for (size_t i = 0; i < encoding_stats.size(); ++i) {
+ const auto& encoding = encoding_stats.at(i);
+ stream << EncodingToString(encoding.encoding);
+ if (encoding.page_type == parquet::PageType::DICTIONARY_PAGE) {
+ // Explicitly tell if this encoding comes from a dictionary page
+ stream << "(DICT_PAGE)";
Review Comment:
Can you explain what this means? Can a dictionary encoding come from a
non-dict page, or vice-versa?
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