[
https://issues.apache.org/jira/browse/PARQUET-2261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17758157#comment-17758157
]
ASF GitHub Bot commented on PARQUET-2261:
-----------------------------------------
mapleFU commented on code in PR #197:
URL: https://github.com/apache/parquet-format/pull/197#discussion_r1303307879
##########
src/main/thrift/parquet.thrift:
##########
@@ -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 :-)
> [Format] Add statistics that reflect decoded size to metadata
> -------------------------------------------------------------
>
> Key: PARQUET-2261
> URL: https://issues.apache.org/jira/browse/PARQUET-2261
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-format
> Reporter: Micah Kornfield
> Assignee: Micah Kornfield
> Priority: Major
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
