wgtmac commented on code in PR #3126:
URL: https://github.com/apache/parquet-java/pull/3126#discussion_r1921902160
##########
parquet-hadoop/src/main/java/org/apache/parquet/format/converter/ParquetMetadataConverter.java:
##########
@@ -2382,8 +2382,14 @@ public static SizeStatistics
toParquetSizeStatistics(org.apache.parquet.column.s
formatStats.setUnencoded_byte_array_data_bytes(
stats.getUnencodedByteArrayDataBytes().get());
}
-
formatStats.setRepetition_level_histogram(stats.getRepetitionLevelHistogram());
-
formatStats.setDefinition_level_histogram(stats.getDefinitionLevelHistogram());
+ List<Long> repLevelHistogram = stats.getRepetitionLevelHistogram();
+ if (repLevelHistogram != null && !repLevelHistogram.isEmpty()) {
+ formatStats.setRepetition_level_histogram(repLevelHistogram);
+ }
+ List<Long> defLevelHistogram = stats.getDefinitionLevelHistogram();
+ if (defLevelHistogram != null && !defLevelHistogram.isEmpty()) {
+ formatStats.setDefinition_level_histogram(defLevelHistogram);
+ }
Review Comment:
This is not a defect but rather a tiny optimization to avoid serializing an
empty list.
--
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]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
