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5 lines
422 B
MySQL
5 lines
422 B
MySQL
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-- Unneeded column is removed from subquery.
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SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) FROM numbers(1000000) GROUP BY number);
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-- Unneeded column cannot be removed from subquery and the query is out of memory
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SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) AS agg FROM numbers(1000000) GROUP BY number HAVING notEmpty(agg)); -- { serverError 241 }
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