cboumalh commented on issue #699:
URL:
https://github.com/apache/datasketches-java/issues/699#issuecomment-3656674808
Sure, code is below
```
import org.apache.datasketches.tuple.strings.{ArrayOfStringsSummary,
ArrayOfStringsSummaryFactory, ArrayOfStringsSummarySetOperations}
import org.apache.datasketches.tuple.{Union}
import org.apache.datasketches.theta.UpdateSketch;
import org.apache.datasketches.tuple.UpdatableSketchBuilder;
val thetaBldr = UpdateSketch.builder();
val thetaSk = thetaBldr.build();
val ufactory = new ArrayOfStringsSummaryFactory()
val tupleBldr = new UpdatableSketchBuilder[Array[String],
ArrayOfStringsSummary](ufactory);
val tupleSk = tupleBldr.build()
thetaSk.update("a");
thetaSk.update("b");
thetaSk.update("c");
tupleSk.update("a", Array("x", "y"))
tupleSk.update("b", Array("z"))
tupleSk.update("e", Array("x", "z"))
val stringArraySetOps = new ArrayOfStringsSummarySetOperations()
val union = new Union(stringArraySetOps);
union.union(tupleSk)
// I'm assuming we can call the update method here on the summary returned
by .newSummary()
// but would we want to just have it default to something that does not
throw an
// error (similar to double and integer defaults)?
union.union(thetaSk, ufactory.newSummary());
```
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