etseidl commented on code in PR #197:
URL: https://github.com/apache/parquet-format/pull/197#discussion_r1320256768
##########
src/main/thrift/parquet.thrift:
##########
@@ -977,6 +1038,25 @@ struct ColumnIndex {
/** A list containing the number of null values for each page **/
5: optional list<i64> null_counts
+
+ /**
+ * Contains repetition level histograms for more details) for each page
+ * concatenated together. The repetition_level_histogram field on
+ * SizeStatistics contains more details.
+ *
+ * When present the length should always be (number of pages *
+ * (max_repetition_level + 1)) elements in size.
+ *
+ * Element 0 is the first element of the histogram for the first page.
+ * Element (max_repetition_level + 1) is the first element of the histogram
+ * for the second page.
Review Comment:
> I'm listing an option,
Understood. And I'm just voicing a preference :wink: I don't need to squeeze
_every_ last microsecond out of size estimation, so am happy to yield to those
with more pressing performance constraints.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
