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4 lines
246 B
MySQL
4 lines
246 B
MySQL
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SELECT uniq(x) FROM (SELECT arrayJoin([[1, 2], [1, 2], [1, 2, 3], []]) AS x);
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SELECT uniqExact(x) FROM (SELECT arrayJoin([[1, 2], [1, 2], [1, 2, 3], []]) AS x);
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SELECT uniqUpTo(2)(x) FROM (SELECT arrayJoin([[1, 2], [1, 2], [1, 2, 3], []]) AS x);
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