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https://issues.apache.org/jira/browse/PARQUET-2261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17705028#comment-17705028
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ASF GitHub Bot commented on PARQUET-2261:
-----------------------------------------
emkornfield commented on code in PR #197:
URL: https://github.com/apache/parquet-format/pull/197#discussion_r1148481707
##########
src/main/thrift/parquet.thrift:
##########
@@ -223,6 +223,17 @@ struct Statistics {
*/
5: optional binary max_value;
6: optional binary min_value;
+ /** The number of bytes the row/group or page would take if encoded with
plain-encoding */
+ 7: optional i64 plain_encoded_bytes;
Review Comment:
I'm open to either approach. IIUC the suggestion here to change the name to
something like:
```
/** Optionally set. But only set for byte array columns to help
applications determine total unencoded/uncompressed size of the page.
* This is equivalent to PlainEncoding(values) - (num_values_encoded * 4)
(i.e. it doesn't include the size
* needed to record the lengths of the bytes) nor does it include any size
to account for nulls.
*/
encoded_byte_array_data_bytes
```
> [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
>
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