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Posted to dev@parquet.apache.org by "Matthew Topol (Jira)" <ji...@apache.org> on 2021/09/30 19:58:00 UTC
[jira] [Commented] (PARQUET-2099) [C++] Statistics::num_values() is
misleading
[ https://issues.apache.org/jira/browse/PARQUET-2099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17422993#comment-17422993 ]
Matthew Topol commented on PARQUET-2099:
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thanks for the heads up [~emkornfield], i'll keep an eye on this so that I can update the Go implementation once a decision is reached.
> [C++] Statistics::num_values() is misleading
> ---------------------------------------------
>
> Key: PARQUET-2099
> URL: https://issues.apache.org/jira/browse/PARQUET-2099
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp
> Reporter: Micah Kornfield
> Priority: Major
> Fix For: cpp-6.0.0
>
>
> num_values() in statistics seems to capture the number of encoded values. This is misleading as everyplace else in parquet num_values() really indicates all values (null and not-null, i.e. the number of levels).
> We should likely remove this field, rename it or at the very least update the documentation.
> CC [~zeroshade]
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