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Posted to dev@orc.apache.org by "melin (Jira)" <ji...@apache.org> on 2021/12/11 14:20:00 UTC
[jira] [Created] (ORC-1058) Add metadata num_nulls
melin created ORC-1058:
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Summary: Add metadata num_nulls
Key: ORC-1058
URL: https://issues.apache.org/jira/browse/ORC-1058
Project: ORC
Issue Type: Improvement
Reporter: melin
parquet store the amount of null data for each column, which can be read directly during data quality analysis, avoiding calculation of statistics
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