pitrou commented on code in PR #242:
URL: https://github.com/apache/parquet-format/pull/242#discussion_r1603914489
##########
src/main/thrift/parquet.thrift:
##########
@@ -914,6 +1040,32 @@ struct RowGroup {
7: optional i16 ordinal
}
+struct RowGroupV3 {
+ /** REMOVED from v1: columns.
+ * Instead, decode each FileColumnMetadataV3 individually as needed.
+ */
+
+ /** Total byte size of all the uncompressed column data in this row group **/
+ 1: required i64 total_byte_size
Review Comment:
This field was introduced [in
2013](https://github.com/apache/parquet-format/commit/e52693de173387d95300cd3e3ea67a04aa81d789),
I'm not sure anyone still has a memory of the reasons. The author is named
Nong Li. @nongli Is it you?
Also ping @julienledem, who was there too.
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