Ian Hellstrom created SPARK-13336:
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Summary: Add non-numerical summaries to DataFrame.describe
Key: SPARK-13336
URL: https://issues.apache.org/jira/browse/SPARK-13336
Project: Spark
Issue Type: Improvement
Components: SQL
Reporter: Ian Hellstrom
Priority: Minor
The DataFrame.describe method currently only returns statistics for numerical
columns. It would be nice to see generic information that is non-statistical in
nature yet often important to see, especially when assessing the quality of
data:
* MIN/MAX for any column, not just numerical ones
* (approximate) DISTINCT COUNT (or percentage of all rows or sample)
* (approximate) NULL COUNT (or percentage of all rows or sample)
* (approximate) MODE (i.e. most common value of all rows or sample)
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