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Posted to issues@impala.apache.org by "Qifan Chen (Jira)" <ji...@apache.org> on 2022/02/14 18:36:00 UTC

[jira] [Created] (IMPALA-11122) Handle false "Corrupted stats" warnings

Qifan Chen created IMPALA-11122:
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             Summary: Handle false "Corrupted stats" warnings
                 Key: IMPALA-11122
                 URL: https://issues.apache.org/jira/browse/IMPALA-11122
             Project: IMPALA
          Issue Type: Improvement
            Reporter: Qifan Chen


In at least one Parquet implementation, it is possible for the writer to write out parquet files whose row group contains 0 row. However, the file still contains footer metadata, so it is not 0 byte.

In show table stats report, it is possible that some row in the #rows column is 0, while in the Size column a positive value (for number of bytes) is present. 



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