fetch more than 20 rows and display full value of column in spark-shell

You won't get in nice tabular form instead it will be converted to scala object.

maxDF.take(50)

If you want to print the whole value of a column, in scala, you just need to set the argument truncate from the show method to false :

maxDf.show(false)

and if you wish to show more than 20 rows :

// example showing 30 columns of 
// maxDf untruncated
maxDf.show(30, false)

For pyspark, you'll need to specify the argument name :

maxDF.show(truncate = False)

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