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Merge pull request #17375 from ClickHouse/always-working-test

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Added a test for what was always working
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alexey-milovidov 2020-11-26 03:29:14 +03:00 committed by GitHub
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tests/queries/0_stateless/01586_columns_pruning.reference Normal file
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tests/queries/0_stateless/01586_columns_pruning.sql Normal file
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-- Unneeded column is removed from subquery.
SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) FROM numbers(1000000) GROUP BY number);
-- Unneeded column cannot be removed from subquery and the query is out of memory
SELECT count() FROM (SELECT number, groupArray(repeat(toString(number), 1000000)) AS agg FROM numbers(1000000) GROUP BY number HAVING notEmpty(agg)); -- { serverError 241 }