mapleFU commented on code in PR #197:
URL: https://github.com/apache/parquet-format/pull/197#discussion_r1303307879
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src/main/thrift/parquet.thrift:
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@@ -974,6 +1050,13 @@ struct ColumnIndex {
/** A list containing the number of null values for each page **/
5: optional list<i64> null_counts
+ /**
+ * Repetition and definition level histograms for the pages.
+ *
+ * This contains some redundancy with null_counts, however, to accommodate
the
+ * widest range of readers both should be populated.
+ **/
+ 6: optional list<RepetitionDefinitionLevelHistogram>
repetition_definition_level_histograms;
Review Comment:
I think `list<i64>` (or optional) for uncompressed size with same length as
"OffsetIndex" is suitable for you case. You can draft first since this patch
need 2 language impl as poc, so might take some time. And you can first store
in key-value-metadata to test if this works :-)
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