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The following page has been changed by OlgaN: http://wiki.apache.org/pig/PigUserCookbook ------------------------------------------------------------------------------ C = join small by t, large by x; }}} + In some of our tests we saw 10x performance improvement as the result of this optimization. + '''Prefer DISTINCT over GROUP BY - GENERATE''' When it comes to extracting the unique values from a column in a relation, one of two approaches can be used:
