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/* syntax version 1 */
USE plato;
$serialize = Udf(ReservoirSampling::Serialize, String);
$merge = Udf(ReservoirSampling::Merge, String);
SELECT $serialize(ReservoirSampling::Deserialize($serialize($merge(ReservoirSampling::Create("abc", 123ul), ReservoirSampling::Create("cde", 123ul)))));
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