pitrou commented on code in PR #35455:
URL: https://github.com/apache/arrow/pull/35455#discussion_r1204382141
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cpp/src/parquet/column_writer.cc:
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@@ -460,7 +460,11 @@ class SerializedPageWriter : public PageWriter {
ToThrift(page.definition_level_encoding()));
data_page_header.__set_repetition_level_encoding(
ToThrift(page.repetition_level_encoding()));
- data_page_header.__set_statistics(ToThrift(page.statistics()));
+
+ // Write page statistics only when page index is not enabled.
+ if (column_index_builder_ == nullptr) {
+ data_page_header.__set_statistics(ToThrift(page.statistics()));
+ }
Review Comment:
This only disables writing the statistics, but still computes them, which is
suboptimal.
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