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Merged
MayeulRousselet merged 2 commits into from
Mar 18, 2026
Merged

add doc dataset-audit #306

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add doc
sevanga Jan 7, 2026
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Renamed doc.md -> README.md
MayeulRousselet Mar 18, 2026
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12 changes: 12 additions & 0 deletions dataset-audit/README.md
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This plugin provides a recipe that takes a SQL-based or HDFS-based dataset as input, and outputs an audit of the data in the input dataset.

The output is a dataset with one line per column in the input dataset.
For each column, the recipe outputs:

- Type.
- Cardinality (number of distinct values).
- Number of missing/empty values.
- Most frequent value and most frequent value count.
- For numerical columns: min, max, avg.

The recipe uses in-processing or in-Hadoop processing, as appropriate for the input dataset.