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5 lines
238 B
MySQL
5 lines
238 B
MySQL
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select k, groupArraySample(10)(v) from (select number % 4 as k, number as v from numbers(1024)) group by k;
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-- different seed
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select k, groupArraySample(10, 1)(v) from (select number % 4 as k, number as v from numbers(1024)) group by k;
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