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  1. Pig
  2. PIG-2526

Add ability to parametize keys in maps with tuple fields or scalars

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      Description

      I want to access values in maps by tuple fields.

      A = load 'data' as (id:int, M:map[]);
      B = load 'other_data' as (id:int, cat:chararray);

      C = JOIN A by id, C by id;
      D = foreach A generate A:id, M#cat as hash_value; /* the value in cat for each record serves as the key in the map to retrieve its value. */

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            • Assignee:
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              Reporter:
              russell.jurney Russell Jurney
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              • Created:
                Updated: