lic class <span class="typeNameLabel">UnionDoublesSketch</span>
extends org.apache.pig.EvalFunc&lt;org.apache.pig.data.Tuple&gt;
implements org.apache.pig.Accumulator&lt;org.apache.pig.data.Tuple&gt;, org.apache.pig.Algebraic</pre>
<div class="block">This is a Pig UDF that merges Quantiles Sketches.
 To assist Pig, this class implements both the <i>Accumulator</i> and <i>Algebraic</i> interfaces.</div>
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