Returns the last value in the tuple for the specified field.
Use last() to return the last value of a measure or dimension. You can also use last() to return the value of a field without grouping by that field.
note: If the values are not sorted, the 'last' value could be any value in the tuple.
Example - Return the Last Industry for an Account Owner
Your reps own opportunities in several industries. You need a list of rep names with their last industry, where industry is sorted alphabetically. Group by account owner and industry, sort by industry, then use first() to get the last industry.
q = load "DTC_Opportunity_SAMPLE";
q = group q by ('Account_Owner', 'Industry');
q = foreach q generate 'Account_Owner' as 'Account_Owner', 'Industry' as 'Industry';
q = order q by 'Industry';
q = foreach q generate 'Account_Owner' as 'Account_Owner', last('Industry') as 'One Industry';

See Also